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Finding the Fourth Proportional to 70,832.91, 105,731.14 and 62,425.61

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Solution

The fourth proportional to 70,832.91, 105,731.14 and 62,425.61 is: 93,181.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,832.91 : 105,731.14 = 62,425.61 : x
  2. Step 2: Convert to fraction form
    70,832.91/105,731.14 = 62,425.61/x
  3. Step 3: Cross multiply
    70,832.91x = 105,731.14 × 62,425.61
  4. Step 4: Simplify right side
    70,832.91x = 6,600,331,158.48
  5. Step 5: Solve for x
    x = 6,600,331,158.48/70,832.91
  6. Step 6: Final answer
    x = 93,181.71

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.