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Finding the Fourth Proportional to 162,098.70, 223,694.91 and 90,476.48

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Solution

The fourth proportional to 162,098.70, 223,694.91 and 90,476.48 is: 124,856.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,098.70 : 223,694.91 = 90,476.48 : x
  2. Step 2: Convert to fraction form
    162,098.70/223,694.91 = 90,476.48/x
  3. Step 3: Cross multiply
    162,098.70x = 223,694.91 × 90,476.48
  4. Step 4: Simplify right side
    162,098.70x = 20,239,126,932.24
  5. Step 5: Solve for x
    x = 20,239,126,932.24/162,098.70
  6. Step 6: Final answer
    x = 124,856.81

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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.