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Finding the Fourth Proportional to 158,552.52, 218,805.48 and 86,928.27

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Solution

The fourth proportional to 158,552.52, 218,805.48 and 86,928.27 is: 119,962.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,552.52 : 218,805.48 = 86,928.27 : x
  2. Step 2: Convert to fraction form
    158,552.52/218,805.48 = 86,928.27/x
  3. Step 3: Cross multiply
    158,552.52x = 218,805.48 × 86,928.27
  4. Step 4: Simplify right side
    158,552.52x = 19,020,381,842.92
  5. Step 5: Solve for x
    x = 19,020,381,842.92/158,552.52
  6. Step 6: Final answer
    x = 119,962.66

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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.