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Finding the Fourth Proportional to 158,713.38, 219,017.43 and 87,092.01

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Solution

The fourth proportional to 158,713.38, 219,017.43 and 87,092.01 is: 120,183.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,713.38 : 219,017.43 = 87,092.01 : x
  2. Step 2: Convert to fraction form
    158,713.38/219,017.43 = 87,092.01/x
  3. Step 3: Cross multiply
    158,713.38x = 219,017.43 × 87,092.01
  4. Step 4: Simplify right side
    158,713.38x = 19,074,668,203.73
  5. Step 5: Solve for x
    x = 19,074,668,203.73/158,713.38
  6. Step 6: Final answer
    x = 120,183.11

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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.