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Finding the Fourth Proportional to 85,164.88, 127,748.12 and 29,761.04

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Solution

The fourth proportional to 85,164.88, 127,748.12 and 29,761.04 is: 44,641.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,164.88 : 127,748.12 = 29,761.04 : x
  2. Step 2: Convert to fraction form
    85,164.88/127,748.12 = 29,761.04/x
  3. Step 3: Cross multiply
    85,164.88x = 127,748.12 × 29,761.04
  4. Step 4: Simplify right side
    85,164.88x = 3,801,916,909.24
  5. Step 5: Solve for x
    x = 3,801,916,909.24/85,164.88
  6. Step 6: Final answer
    x = 44,641.84

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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.