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Finding the Fourth Proportional to 373,678.26, 515,686.92 and 203,923.32

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Solution

The fourth proportional to 373,678.26, 515,686.92 and 203,923.32 is: 281,420.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,678.26 : 515,686.92 = 203,923.32 : x
  2. Step 2: Convert to fraction form
    373,678.26/515,686.92 = 203,923.32/x
  3. Step 3: Cross multiply
    373,678.26x = 515,686.92 × 203,923.32
  4. Step 4: Simplify right side
    373,678.26x = 105,160,588,806.97
  5. Step 5: Solve for x
    x = 105,160,588,806.97/373,678.26
  6. Step 6: Final answer
    x = 281,420.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.