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Finding the Fourth Proportional to 63,881.70, 88,109.82 and 42,332.46

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Solution

The fourth proportional to 63,881.70, 88,109.82 and 42,332.46 is: 58,387.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,881.70 : 88,109.82 = 42,332.46 : x
  2. Step 2: Convert to fraction form
    63,881.70/88,109.82 = 42,332.46/x
  3. Step 3: Cross multiply
    63,881.70x = 88,109.82 × 42,332.46
  4. Step 4: Simplify right side
    63,881.70x = 3,729,905,430.76
  5. Step 5: Solve for x
    x = 3,729,905,430.76/63,881.70
  6. Step 6: Final answer
    x = 58,387.70

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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.