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Finding the Fourth Proportional to 95,953.20, 143,929.80 and 86,767.80

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Solution

The fourth proportional to 95,953.20, 143,929.80 and 86,767.80 is: 130,151.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,953.20 : 143,929.80 = 86,767.80 : x
  2. Step 2: Convert to fraction form
    95,953.20/143,929.80 = 86,767.80/x
  3. Step 3: Cross multiply
    95,953.20x = 143,929.80 × 86,767.80
  4. Step 4: Simplify right side
    95,953.20x = 12,488,472,100.44
  5. Step 5: Solve for x
    x = 12,488,472,100.44/95,953.20
  6. Step 6: Final answer
    x = 130,151.70

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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.