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Finding the Fourth Proportional to 113,184, 156,198.78 and 62,883

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Solution

The fourth proportional to 113,184, 156,198.78 and 62,883 is: 86,781.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,184 : 156,198.78 = 62,883 : x
  2. Step 2: Convert to fraction form
    113,184/156,198.78 = 62,883/x
  3. Step 3: Cross multiply
    113,184x = 156,198.78 × 62,883
  4. Step 4: Simplify right side
    113,184x = 9,822,247,882.74
  5. Step 5: Solve for x
    x = 9,822,247,882.74/113,184
  6. Step 6: Final answer
    x = 86,781.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.