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Finding the Fourth Proportional to 225,221.76, 337,949.28 and 163,402.56

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Solution

The fourth proportional to 225,221.76, 337,949.28 and 163,402.56 is: 245,188.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,221.76 : 337,949.28 = 163,402.56 : x
  2. Step 2: Convert to fraction form
    225,221.76/337,949.28 = 163,402.56/x
  3. Step 3: Cross multiply
    225,221.76x = 337,949.28 × 163,402.56
  4. Step 4: Simplify right side
    225,221.76x = 55,221,777,502.16
  5. Step 5: Solve for x
    x = 55,221,777,502.16/225,221.76
  6. Step 6: Final answer
    x = 245,188.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.