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Finding the Fourth Proportional to 58,759.70, 88,143.80 and 29,147.72

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Solution

The fourth proportional to 58,759.70, 88,143.80 and 29,147.72 is: 43,723.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,759.70 : 88,143.80 = 29,147.72 : x
  2. Step 2: Convert to fraction form
    58,759.70/88,143.80 = 29,147.72/x
  3. Step 3: Cross multiply
    58,759.70x = 88,143.80 × 29,147.72
  4. Step 4: Simplify right side
    58,759.70x = 2,569,190,215.68
  5. Step 5: Solve for x
    x = 2,569,190,215.68/58,759.70
  6. Step 6: Final answer
    x = 43,723.68

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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.