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Finding the Fourth Proportional to 96,670.20, 145,005.30 and 88,375.80

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Solution

The fourth proportional to 96,670.20, 145,005.30 and 88,375.80 is: 132,563.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,670.20 : 145,005.30 = 88,375.80 : x
  2. Step 2: Convert to fraction form
    96,670.20/145,005.30 = 88,375.80/x
  3. Step 3: Cross multiply
    96,670.20x = 145,005.30 × 88,375.80
  4. Step 4: Simplify right side
    96,670.20x = 12,814,959,391.74
  5. Step 5: Solve for x
    x = 12,814,959,391.74/96,670.20
  6. Step 6: Final answer
    x = 132,563.70

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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.