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Finding the Fourth Proportional to 77,642.92, 107,146.65 and 44,108.92

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Solution

The fourth proportional to 77,642.92, 107,146.65 and 44,108.92 is: 60,869.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,642.92 : 107,146.65 = 44,108.92 : x
  2. Step 2: Convert to fraction form
    77,642.92/107,146.65 = 44,108.92/x
  3. Step 3: Cross multiply
    77,642.92x = 107,146.65 × 44,108.92
  4. Step 4: Simplify right side
    77,642.92x = 4,726,123,013.12
  5. Step 5: Solve for x
    x = 4,726,123,013.12/77,642.92
  6. Step 6: Final answer
    x = 60,869.98

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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.