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Finding the Fourth Proportional to 158,882.80, 219,259.56 and 87,263.68

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Solution

The fourth proportional to 158,882.80, 219,259.56 and 87,263.68 is: 120,424.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,882.80 : 219,259.56 = 87,263.68 : x
  2. Step 2: Convert to fraction form
    158,882.80/219,259.56 = 87,263.68/x
  3. Step 3: Cross multiply
    158,882.80x = 219,259.56 × 87,263.68
  4. Step 4: Simplify right side
    158,882.80x = 19,133,396,080.78
  5. Step 5: Solve for x
    x = 19,133,396,080.78/158,882.80
  6. Step 6: Final answer
    x = 120,424.59

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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.