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Finding the Fourth Proportional to 157,400.61, 236,159.25 and 73,205.97

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Solution

The fourth proportional to 157,400.61, 236,159.25 and 73,205.97 is: 109,836.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,400.61 : 236,159.25 = 73,205.97 : x
  2. Step 2: Convert to fraction form
    157,400.61/236,159.25 = 73,205.97/x
  3. Step 3: Cross multiply
    157,400.61x = 236,159.25 × 73,205.97
  4. Step 4: Simplify right side
    157,400.61x = 17,288,266,970.72
  5. Step 5: Solve for x
    x = 17,288,266,970.72/157,400.61
  6. Step 6: Final answer
    x = 109,836.09

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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.