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Finding the Fourth Proportional to 269,857.61, 372,404.04 and 148,999.13

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Solution

The fourth proportional to 269,857.61, 372,404.04 and 148,999.13 is: 205,619.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,857.61 : 372,404.04 = 148,999.13 : x
  2. Step 2: Convert to fraction form
    269,857.61/372,404.04 = 148,999.13/x
  3. Step 3: Cross multiply
    269,857.61x = 372,404.04 × 148,999.13
  4. Step 4: Simplify right side
    269,857.61x = 55,487,876,106.47
  5. Step 5: Solve for x
    x = 55,487,876,106.47/269,857.61
  6. Step 6: Final answer
    x = 205,619.09

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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.