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Finding the Fourth Proportional to 372,139.20, 504,046.80 and 372,139.20

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Solution

The fourth proportional to 372,139.20, 504,046.80 and 372,139.20 is: 504,046.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,139.20 : 504,046.80 = 372,139.20 : x
  2. Step 2: Convert to fraction form
    372,139.20/504,046.80 = 372,139.20/x
  3. Step 3: Cross multiply
    372,139.20x = 504,046.80 × 372,139.20
  4. Step 4: Simplify right side
    372,139.20x = 187,575,572,914.56
  5. Step 5: Solve for x
    x = 187,575,572,914.56/372,139.20
  6. Step 6: Final answer
    x = 504,046.80

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.