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Finding the Fourth Proportional to 59,138.90, 88,675.53 and 19,674.47

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Solution

The fourth proportional to 59,138.90, 88,675.53 and 19,674.47 is: 29,500.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,138.90 : 88,675.53 = 19,674.47 : x
  2. Step 2: Convert to fraction form
    59,138.90/88,675.53 = 19,674.47/x
  3. Step 3: Cross multiply
    59,138.90x = 88,675.53 × 19,674.47
  4. Step 4: Simplify right side
    59,138.90x = 1,744,644,325.59
  5. Step 5: Solve for x
    x = 1,744,644,325.59/59,138.90
  6. Step 6: Final answer
    x = 29,500.79

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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.