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Finding the Fourth Proportional to 344,116.90, 516,002.55 and 156,916.90

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Solution

The fourth proportional to 344,116.90, 516,002.55 and 156,916.90 is: 235,296.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,116.90 : 516,002.55 = 156,916.90 : x
  2. Step 2: Convert to fraction form
    344,116.90/516,002.55 = 156,916.90/x
  3. Step 3: Cross multiply
    344,116.90x = 516,002.55 × 156,916.90
  4. Step 4: Simplify right side
    344,116.90x = 80,969,520,538.10
  5. Step 5: Solve for x
    x = 80,969,520,538.10/344,116.90
  6. Step 6: Final answer
    x = 235,296.55

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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.