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Finding the Fourth Proportional to 90,487.55, 135,797.00 and 63,657.11

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Solution

The fourth proportional to 90,487.55, 135,797.00 and 63,657.11 is: 95,531.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,487.55 : 135,797.00 = 63,657.11 : x
  2. Step 2: Convert to fraction form
    90,487.55/135,797.00 = 63,657.11/x
  3. Step 3: Cross multiply
    90,487.55x = 135,797.00 × 63,657.11
  4. Step 4: Simplify right side
    90,487.55x = 8,644,443,569.40
  5. Step 5: Solve for x
    x = 8,644,443,569.40/90,487.55
  6. Step 6: Final answer
    x = 95,531.86

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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.