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Finding the Fourth Proportional to 394,911.76, 592,456.76 and 125,056.28

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Solution

The fourth proportional to 394,911.76, 592,456.76 and 125,056.28 is: 187,612.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,911.76 : 592,456.76 = 125,056.28 : x
  2. Step 2: Convert to fraction form
    394,911.76/592,456.76 = 125,056.28/x
  3. Step 3: Cross multiply
    394,911.76x = 592,456.76 × 125,056.28
  4. Step 4: Simplify right side
    394,911.76x = 74,090,438,466.45
  5. Step 5: Solve for x
    x = 74,090,438,466.45/394,911.76
  6. Step 6: Final answer
    x = 187,612.64

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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.