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Finding the Fourth Proportional to 65,550.74, 98,251.76 and 57,637.98

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Solution

The fourth proportional to 65,550.74, 98,251.76 and 57,637.98 is: 86,391.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,550.74 : 98,251.76 = 57,637.98 : x
  2. Step 2: Convert to fraction form
    65,550.74/98,251.76 = 57,637.98/x
  3. Step 3: Cross multiply
    65,550.74x = 98,251.76 × 57,637.98
  4. Step 4: Simplify right side
    65,550.74x = 5,663,033,121.94
  5. Step 5: Solve for x
    x = 5,663,033,121.94/65,550.74
  6. Step 6: Final answer
    x = 86,391.60

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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.