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Finding the Fourth Proportional to 394,332.39, 591,498.31 and 94,812.87

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Solution

The fourth proportional to 394,332.39, 591,498.31 and 94,812.87 is: 142,219.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,332.39 : 591,498.31 = 94,812.87 : x
  2. Step 2: Convert to fraction form
    394,332.39/591,498.31 = 94,812.87/x
  3. Step 3: Cross multiply
    394,332.39x = 591,498.31 × 94,812.87
  4. Step 4: Simplify right side
    394,332.39x = 56,081,652,134.22
  5. Step 5: Solve for x
    x = 56,081,652,134.22/394,332.39
  6. Step 6: Final answer
    x = 142,219.24

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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.