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Finding the Fourth Proportional to 89,115.66, 133,695.77 and 62,871.66

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Solution

The fourth proportional to 89,115.66, 133,695.77 and 62,871.66 is: 94,323.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,115.66 : 133,695.77 = 62,871.66 : x
  2. Step 2: Convert to fraction form
    89,115.66/133,695.77 = 62,871.66/x
  3. Step 3: Cross multiply
    89,115.66x = 133,695.77 × 62,871.66
  4. Step 4: Simplify right side
    89,115.66x = 8,405,674,680.52
  5. Step 5: Solve for x
    x = 8,405,674,680.52/89,115.66
  6. Step 6: Final answer
    x = 94,323.21

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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.