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Finding the Fourth Proportional to 186,770.80, 280,156.20 and 53,655.40

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Solution

The fourth proportional to 186,770.80, 280,156.20 and 53,655.40 is: 80,483.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,770.80 : 280,156.20 = 53,655.40 : x
  2. Step 2: Convert to fraction form
    186,770.80/280,156.20 = 53,655.40/x
  3. Step 3: Cross multiply
    186,770.80x = 280,156.20 × 53,655.40
  4. Step 4: Simplify right side
    186,770.80x = 15,031,892,973.48
  5. Step 5: Solve for x
    x = 15,031,892,973.48/186,770.80
  6. Step 6: Final answer
    x = 80,483.10

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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.