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Finding the Fourth Proportional to 96,934.40, 145,401.60 and 88,186.40

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Solution

The fourth proportional to 96,934.40, 145,401.60 and 88,186.40 is: 132,279.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,934.40 : 145,401.60 = 88,186.40 : x
  2. Step 2: Convert to fraction form
    96,934.40/145,401.60 = 88,186.40/x
  3. Step 3: Cross multiply
    96,934.40x = 145,401.60 × 88,186.40
  4. Step 4: Simplify right side
    96,934.40x = 12,822,443,658.24
  5. Step 5: Solve for x
    x = 12,822,443,658.24/96,934.40
  6. Step 6: Final answer
    x = 132,279.60

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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.