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Finding the Fourth Proportional to 161,856.75, 223,359.75 and 90,241.14

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Solution

The fourth proportional to 161,856.75, 223,359.75 and 90,241.14 is: 124,531.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,856.75 : 223,359.75 = 90,241.14 : x
  2. Step 2: Convert to fraction form
    161,856.75/223,359.75 = 90,241.14/x
  3. Step 3: Cross multiply
    161,856.75x = 223,359.75 × 90,241.14
  4. Step 4: Simplify right side
    161,856.75x = 20,156,238,470.12
  5. Step 5: Solve for x
    x = 20,156,238,470.12/161,856.75
  6. Step 6: Final answer
    x = 124,531.34

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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.