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Finding the Fourth Proportional to 283,694.00, 391,500.34 and 156,374.15

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Solution

The fourth proportional to 283,694.00, 391,500.34 and 156,374.15 is: 215,797.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,694.00 : 391,500.34 = 156,374.15 : x
  2. Step 2: Convert to fraction form
    283,694.00/391,500.34 = 156,374.15/x
  3. Step 3: Cross multiply
    283,694.00x = 391,500.34 × 156,374.15
  4. Step 4: Simplify right side
    283,694.00x = 61,220,530,543.77
  5. Step 5: Solve for x
    x = 61,220,530,543.77/283,694.00
  6. Step 6: Final answer
    x = 215,797.77

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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.