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Finding the Fourth Proportional to 101,920.88, 152,881.22 and 39,591.38

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Solution

The fourth proportional to 101,920.88, 152,881.22 and 39,591.38 is: 59,387.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,920.88 : 152,881.22 = 39,591.38 : x
  2. Step 2: Convert to fraction form
    101,920.88/152,881.22 = 39,591.38/x
  3. Step 3: Cross multiply
    101,920.88x = 152,881.22 × 39,591.38
  4. Step 4: Simplify right side
    101,920.88x = 6,052,778,957.07
  5. Step 5: Solve for x
    x = 6,052,778,957.07/101,920.88
  6. Step 6: Final answer
    x = 59,387.03

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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.