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Finding the Fourth Proportional to 166,311,318.80, 249,466,978.20 and 166,311,318.80

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Solution

The fourth proportional to 166,311,318.80, 249,466,978.20 and 166,311,318.80 is: 249,466,978.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,311,318.80 : 249,466,978.20 = 166,311,318.80 : x
  2. Step 2: Convert to fraction form
    166,311,318.80/249,466,978.20 = 166,311,318.80/x
  3. Step 3: Cross multiply
    166,311,318.80x = 249,466,978.20 × 166,311,318.80
  4. Step 4: Simplify right side
    166,311,318.80x = 41,489,182,141,492,848
  5. Step 5: Solve for x
    x = 41,489,182,141,492,848/166,311,318.80
  6. Step 6: Final answer
    x = 249,466,978.20

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.