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Finding the Fourth Proportional to 158,577.01, 218,839.38 and 86,957.17

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Solution

The fourth proportional to 158,577.01, 218,839.38 and 86,957.17 is: 120,002.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,577.01 : 218,839.38 = 86,957.17 : x
  2. Step 2: Convert to fraction form
    158,577.01/218,839.38 = 86,957.17/x
  3. Step 3: Cross multiply
    158,577.01x = 218,839.38 × 86,957.17
  4. Step 4: Simplify right side
    158,577.01x = 19,029,653,169.35
  5. Step 5: Solve for x
    x = 19,029,653,169.35/158,577.01
  6. Step 6: Final answer
    x = 120,002.60

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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.