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Finding the Fourth Proportional to 166,420.80, 249,631.20 and 48,104.10

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Solution

The fourth proportional to 166,420.80, 249,631.20 and 48,104.10 is: 72,156.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,420.80 : 249,631.20 = 48,104.10 : x
  2. Step 2: Convert to fraction form
    166,420.80/249,631.20 = 48,104.10/x
  3. Step 3: Cross multiply
    166,420.80x = 249,631.20 × 48,104.10
  4. Step 4: Simplify right side
    166,420.80x = 12,008,284,207.92
  5. Step 5: Solve for x
    x = 12,008,284,207.92/166,420.80
  6. Step 6: Final answer
    x = 72,156.15

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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.