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Finding the Fourth Proportional to 283,727.53, 391,544.85 and 156,400.39

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Solution

The fourth proportional to 283,727.53, 391,544.85 and 156,400.39 is: 215,833.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,727.53 : 391,544.85 = 156,400.39 : x
  2. Step 2: Convert to fraction form
    283,727.53/391,544.85 = 156,400.39/x
  3. Step 3: Cross multiply
    283,727.53x = 391,544.85 × 156,400.39
  4. Step 4: Simplify right side
    283,727.53x = 61,237,767,242.49
  5. Step 5: Solve for x
    x = 61,237,767,242.49/283,727.53
  6. Step 6: Final answer
    x = 215,833.01

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