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Finding the Fourth Proportional to 158,642.73, 218,962.17 and 124,119.36

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Solution

The fourth proportional to 158,642.73, 218,962.17 and 124,119.36 is: 171,312.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,642.73 : 218,962.17 = 124,119.36 : x
  2. Step 2: Convert to fraction form
    158,642.73/218,962.17 = 124,119.36/x
  3. Step 3: Cross multiply
    158,642.73x = 218,962.17 × 124,119.36
  4. Step 4: Simplify right side
    158,642.73x = 27,177,444,404.61
  5. Step 5: Solve for x
    x = 27,177,444,404.61/158,642.73
  6. Step 6: Final answer
    x = 171,312.26

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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.