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Finding the Fourth Proportional to 88,731.40, 133,097.10 and 26,401.90

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Solution

The fourth proportional to 88,731.40, 133,097.10 and 26,401.90 is: 39,602.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,731.40 : 133,097.10 = 26,401.90 : x
  2. Step 2: Convert to fraction form
    88,731.40/133,097.10 = 26,401.90/x
  3. Step 3: Cross multiply
    88,731.40x = 133,097.10 × 26,401.90
  4. Step 4: Simplify right side
    88,731.40x = 3,514,016,324.49
  5. Step 5: Solve for x
    x = 3,514,016,324.49/88,731.40
  6. Step 6: Final answer
    x = 39,602.85

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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.