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Finding the Fourth Proportional to 113,785.38, 156,950.73 and 69,073.38

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Solution

The fourth proportional to 113,785.38, 156,950.73 and 69,073.38 is: 95,276.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,785.38 : 156,950.73 = 69,073.38 : x
  2. Step 2: Convert to fraction form
    113,785.38/156,950.73 = 69,073.38/x
  3. Step 3: Cross multiply
    113,785.38x = 156,950.73 × 69,073.38
  4. Step 4: Simplify right side
    113,785.38x = 10,841,117,414.57
  5. Step 5: Solve for x
    x = 10,841,117,414.57/113,785.38
  6. Step 6: Final answer
    x = 95,276.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.