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Finding the Fourth Proportional to 99,026.55, 148,375.80 and 84,264.30

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Solution

The fourth proportional to 99,026.55, 148,375.80 and 84,264.30 is: 126,256.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,026.55 : 148,375.80 = 84,264.30 : x
  2. Step 2: Convert to fraction form
    99,026.55/148,375.80 = 84,264.30/x
  3. Step 3: Cross multiply
    99,026.55x = 148,375.80 × 84,264.30
  4. Step 4: Simplify right side
    99,026.55x = 12,502,782,923.94
  5. Step 5: Solve for x
    x = 12,502,782,923.94/99,026.55
  6. Step 6: Final answer
    x = 126,256.88

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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.