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Finding the Fourth Proportional to 107,785.71, 148,748.83 and 60,039.05

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Solution

The fourth proportional to 107,785.71, 148,748.83 and 60,039.05 is: 82,856.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,785.71 : 148,748.83 = 60,039.05 : x
  2. Step 2: Convert to fraction form
    107,785.71/148,748.83 = 60,039.05/x
  3. Step 3: Cross multiply
    107,785.71x = 148,748.83 × 60,039.05
  4. Step 4: Simplify right side
    107,785.71x = 8,930,737,547.97
  5. Step 5: Solve for x
    x = 8,930,737,547.97/107,785.71
  6. Step 6: Final answer
    x = 82,856.42

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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.