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Finding the Fourth Proportional to 88,750.62, 133,147.80 and 26,421.12

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Solution

The fourth proportional to 88,750.62, 133,147.80 and 26,421.12 is: 39,638.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,750.62 : 133,147.80 = 26,421.12 : x
  2. Step 2: Convert to fraction form
    88,750.62/133,147.80 = 26,421.12/x
  3. Step 3: Cross multiply
    88,750.62x = 133,147.80 × 26,421.12
  4. Step 4: Simplify right side
    88,750.62x = 3,517,914,001.54
  5. Step 5: Solve for x
    x = 3,517,914,001.54/88,750.62
  6. Step 6: Final answer
    x = 39,638.19

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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.