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Finding the Fourth Proportional to 98,854.92, 136,414.40 and 58,572.41

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Solution

The fourth proportional to 98,854.92, 136,414.40 and 58,572.41 is: 80,826.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,854.92 : 136,414.40 = 58,572.41 : x
  2. Step 2: Convert to fraction form
    98,854.92/136,414.40 = 58,572.41/x
  3. Step 3: Cross multiply
    98,854.92x = 136,414.40 × 58,572.41
  4. Step 4: Simplify right side
    98,854.92x = 7,990,119,191.77
  5. Step 5: Solve for x
    x = 7,990,119,191.77/98,854.92
  6. Step 6: Final answer
    x = 80,826.72

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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.