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Finding the Fourth Proportional to 89,124.64, 133,671.92 and 41,744.80

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Solution

The fourth proportional to 89,124.64, 133,671.92 and 41,744.80 is: 62,610.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,124.64 : 133,671.92 = 41,744.80 : x
  2. Step 2: Convert to fraction form
    89,124.64/133,671.92 = 41,744.80/x
  3. Step 3: Cross multiply
    89,124.64x = 133,671.92 × 41,744.80
  4. Step 4: Simplify right side
    89,124.64x = 5,580,107,566.02
  5. Step 5: Solve for x
    x = 5,580,107,566.02/89,124.64
  6. Step 6: Final answer
    x = 62,610.16

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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.