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Finding the Fourth Proportional to 158,473.44, 218,695.08 and 86,851.92

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Solution

The fourth proportional to 158,473.44, 218,695.08 and 86,851.92 is: 119,856.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,473.44 : 218,695.08 = 86,851.92 : x
  2. Step 2: Convert to fraction form
    158,473.44/218,695.08 = 86,851.92/x
  3. Step 3: Cross multiply
    158,473.44x = 218,695.08 × 86,851.92
  4. Step 4: Simplify right side
    158,473.44x = 18,994,087,592.55
  5. Step 5: Solve for x
    x = 18,994,087,592.55/158,473.44
  6. Step 6: Final answer
    x = 119,856.60

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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.