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Finding the Fourth Proportional to 392,044.32, 588,026.16 and 125,995.68

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Solution

The fourth proportional to 392,044.32, 588,026.16 and 125,995.68 is: 188,980.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,044.32 : 588,026.16 = 125,995.68 : x
  2. Step 2: Convert to fraction form
    392,044.32/588,026.16 = 125,995.68/x
  3. Step 3: Cross multiply
    392,044.32x = 588,026.16 × 125,995.68
  4. Step 4: Simplify right side
    392,044.32x = 74,088,755,886.99
  5. Step 5: Solve for x
    x = 74,088,755,886.99/392,044.32
  6. Step 6: Final answer
    x = 188,980.56

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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.