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Finding the Fourth Proportional to 220,572.75, 330,859.13 and 54,360.75

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Solution

The fourth proportional to 220,572.75, 330,859.13 and 54,360.75 is: 81,541.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,572.75 : 330,859.13 = 54,360.75 : x
  2. Step 2: Convert to fraction form
    220,572.75/330,859.13 = 54,360.75/x
  3. Step 3: Cross multiply
    220,572.75x = 330,859.13 × 54,360.75
  4. Step 4: Simplify right side
    220,572.75x = 17,985,750,179.34
  5. Step 5: Solve for x
    x = 17,985,750,179.34/220,572.75
  6. Step 6: Final answer
    x = 81,541.13

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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.