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Finding the Fourth Proportional to 99,473.92, 137,252.72 and 59,179.80

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Solution

The fourth proportional to 99,473.92, 137,252.72 and 59,179.80 is: 81,655.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,473.92 : 137,252.72 = 59,179.80 : x
  2. Step 2: Convert to fraction form
    99,473.92/137,252.72 = 59,179.80/x
  3. Step 3: Cross multiply
    99,473.92x = 137,252.72 × 59,179.80
  4. Step 4: Simplify right side
    99,473.92x = 8,122,589,181.70
  5. Step 5: Solve for x
    x = 8,122,589,181.70/99,473.92
  6. Step 6: Final answer
    x = 81,655.47

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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.