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Finding the Fourth Proportional to 64,398.19, 88,839.26 and 45,545.71

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Solution

The fourth proportional to 64,398.19, 88,839.26 and 45,545.71 is: 62,831.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,398.19 : 88,839.26 = 45,545.71 : x
  2. Step 2: Convert to fraction form
    64,398.19/88,839.26 = 45,545.71/x
  3. Step 3: Cross multiply
    64,398.19x = 88,839.26 × 45,545.71
  4. Step 4: Simplify right side
    64,398.19x = 4,046,246,893.54
  5. Step 5: Solve for x
    x = 4,046,246,893.54/64,398.19
  6. Step 6: Final answer
    x = 62,831.69

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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.