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Finding the Fourth Proportional to 88,687.40, 133,031.10 and 26,357.90

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Solution

The fourth proportional to 88,687.40, 133,031.10 and 26,357.90 is: 39,536.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,687.40 : 133,031.10 = 26,357.90 : x
  2. Step 2: Convert to fraction form
    88,687.40/133,031.10 = 26,357.90/x
  3. Step 3: Cross multiply
    88,687.40x = 133,031.10 × 26,357.90
  4. Step 4: Simplify right side
    88,687.40x = 3,506,420,430.69
  5. Step 5: Solve for x
    x = 3,506,420,430.69/88,687.40
  6. Step 6: Final answer
    x = 39,536.85

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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.