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Finding the Fourth Proportional to 394,705.85, 592,025.96 and 158,061.51

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Solution

The fourth proportional to 394,705.85, 592,025.96 and 158,061.51 is: 237,079.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,705.85 : 592,025.96 = 158,061.51 : x
  2. Step 2: Convert to fraction form
    394,705.85/592,025.96 = 158,061.51/x
  3. Step 3: Cross multiply
    394,705.85x = 592,025.96 × 158,061.51
  4. Step 4: Simplify right side
    394,705.85x = 93,576,517,591.95
  5. Step 5: Solve for x
    x = 93,576,517,591.95/394,705.85
  6. Step 6: Final answer
    x = 237,079.13

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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.