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Finding the Fourth Proportional to 283,798.62, 391,641.62 and 156,474.59

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Solution

The fourth proportional to 283,798.62, 391,641.62 and 156,474.59 is: 215,934.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,798.62 : 391,641.62 = 156,474.59 : x
  2. Step 2: Convert to fraction form
    283,798.62/391,641.62 = 156,474.59/x
  3. Step 3: Cross multiply
    283,798.62x = 391,641.62 × 156,474.59
  4. Step 4: Simplify right side
    283,798.62x = 61,281,959,175.85
  5. Step 5: Solve for x
    x = 61,281,959,175.85/283,798.62
  6. Step 6: Final answer
    x = 215,934.66

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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.