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Finding the Fourth Proportional to 394,874.61, 592,385.73 and 158,235.74

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Solution

The fourth proportional to 394,874.61, 592,385.73 and 158,235.74 is: 237,383.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,874.61 : 592,385.73 = 158,235.74 : x
  2. Step 2: Convert to fraction form
    394,874.61/592,385.73 = 158,235.74/x
  3. Step 3: Cross multiply
    394,874.61x = 592,385.73 × 158,235.74
  4. Step 4: Simplify right side
    394,874.61x = 93,736,592,871.03
  5. Step 5: Solve for x
    x = 93,736,592,871.03/394,874.61
  6. Step 6: Final answer
    x = 237,383.19

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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.