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Finding the Fourth Proportional to 157,843.78, 236,764.99 and 39,514.78

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Solution

The fourth proportional to 157,843.78, 236,764.99 and 39,514.78 is: 59,272.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,843.78 : 236,764.99 = 39,514.78 : x
  2. Step 2: Convert to fraction form
    157,843.78/236,764.99 = 39,514.78/x
  3. Step 3: Cross multiply
    157,843.78x = 236,764.99 × 39,514.78
  4. Step 4: Simplify right side
    157,843.78x = 9,355,717,253.20
  5. Step 5: Solve for x
    x = 9,355,717,253.20/157,843.78
  6. Step 6: Final answer
    x = 59,272.00

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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.