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Finding the Fourth Proportional to 158,586.27, 218,854.13 and 86,966.12

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Solution

The fourth proportional to 158,586.27, 218,854.13 and 86,966.12 is: 120,016.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,586.27 : 218,854.13 = 86,966.12 : x
  2. Step 2: Convert to fraction form
    158,586.27/218,854.13 = 86,966.12/x
  3. Step 3: Cross multiply
    158,586.27x = 218,854.13 × 86,966.12
  4. Step 4: Simplify right side
    158,586.27x = 19,032,895,054.73
  5. Step 5: Solve for x
    x = 19,032,895,054.73/158,586.27
  6. Step 6: Final answer
    x = 120,016.03

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1.5x scale

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.