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Finding the Fourth Proportional to 63,781.70, 88,030.93 and 42,233.46

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Solution

The fourth proportional to 63,781.70, 88,030.93 and 42,233.46 is: 58,290.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,781.70 : 88,030.93 = 42,233.46 : x
  2. Step 2: Convert to fraction form
    63,781.70/88,030.93 = 42,233.46/x
  3. Step 3: Cross multiply
    63,781.70x = 88,030.93 × 42,233.46
  4. Step 4: Simplify right side
    63,781.70x = 3,717,850,760.92
  5. Step 5: Solve for x
    x = 3,717,850,760.92/63,781.70
  6. Step 6: Final answer
    x = 58,290.24

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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.