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Finding the Fourth Proportional to 88,687.90, 133,031.85 and 63,901.90

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Solution

The fourth proportional to 88,687.90, 133,031.85 and 63,901.90 is: 95,852.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,687.90 : 133,031.85 = 63,901.90 : x
  2. Step 2: Convert to fraction form
    88,687.90/133,031.85 = 63,901.90/x
  3. Step 3: Cross multiply
    88,687.90x = 133,031.85 × 63,901.90
  4. Step 4: Simplify right side
    88,687.90x = 8,500,987,975.52
  5. Step 5: Solve for x
    x = 8,500,987,975.52/88,687.90
  6. Step 6: Final answer
    x = 95,852.85

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1.5x scale

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.