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Finding the Fourth Proportional to 68,132.52, 94,027.78 and 37,920.20

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Solution

The fourth proportional to 68,132.52, 94,027.78 and 37,920.20 is: 52,332.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,132.52 : 94,027.78 = 37,920.20 : x
  2. Step 2: Convert to fraction form
    68,132.52/94,027.78 = 37,920.20/x
  3. Step 3: Cross multiply
    68,132.52x = 94,027.78 × 37,920.20
  4. Step 4: Simplify right side
    68,132.52x = 3,565,552,223.16
  5. Step 5: Solve for x
    x = 3,565,552,223.16/68,132.52
  6. Step 6: Final answer
    x = 52,332.60

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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.