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Finding the Fourth Proportional to 158,592.27, 218,857.64 and 86,972.82

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Solution

The fourth proportional to 158,592.27, 218,857.64 and 86,972.82 is: 120,022.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,592.27 : 218,857.64 = 86,972.82 : x
  2. Step 2: Convert to fraction form
    158,592.27/218,857.64 = 86,972.82/x
  3. Step 3: Cross multiply
    158,592.27x = 218,857.64 × 86,972.82
  4. Step 4: Simplify right side
    158,592.27x = 19,034,665,694.48
  5. Step 5: Solve for x
    x = 19,034,665,694.48/158,592.27
  6. Step 6: Final answer
    x = 120,022.66

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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.