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Finding the Fourth Proportional to 59,487.84, 89,137.08 and 31,406.88

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Solution

The fourth proportional to 59,487.84, 89,137.08 and 31,406.88 is: 47,060.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,487.84 : 89,137.08 = 31,406.88 : x
  2. Step 2: Convert to fraction form
    59,487.84/89,137.08 = 31,406.88/x
  3. Step 3: Cross multiply
    59,487.84x = 89,137.08 × 31,406.88
  4. Step 4: Simplify right side
    59,487.84x = 2,799,517,575.11
  5. Step 5: Solve for x
    x = 2,799,517,575.11/59,487.84
  6. Step 6: Final answer
    x = 47,060.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.