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Finding the Fourth Proportional to 101,761.38, 140,400.54 and 59,312.52

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Solution

The fourth proportional to 101,761.38, 140,400.54 and 59,312.52 is: 81,833.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,761.38 : 140,400.54 = 59,312.52 : x
  2. Step 2: Convert to fraction form
    101,761.38/140,400.54 = 59,312.52/x
  3. Step 3: Cross multiply
    101,761.38x = 140,400.54 × 59,312.52
  4. Step 4: Simplify right side
    101,761.38x = 8,327,509,836.76
  5. Step 5: Solve for x
    x = 8,327,509,836.76/101,761.38
  6. Step 6: Final answer
    x = 81,833.70

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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.