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Finding the Fourth Proportional to 88,909.70, 133,400.60 and 38,963.48

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Solution

The fourth proportional to 88,909.70, 133,400.60 and 38,963.48 is: 58,461.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,909.70 : 133,400.60 = 38,963.48 : x
  2. Step 2: Convert to fraction form
    88,909.70/133,400.60 = 38,963.48/x
  3. Step 3: Cross multiply
    88,909.70x = 133,400.60 × 38,963.48
  4. Step 4: Simplify right side
    88,909.70x = 5,197,751,943.59
  5. Step 5: Solve for x
    x = 5,197,751,943.59/88,909.70
  6. Step 6: Final answer
    x = 58,461.02

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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.