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Finding the Fourth Proportional to 162,880.61, 224,760.03 and 91,245.44

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Solution

The fourth proportional to 162,880.61, 224,760.03 and 91,245.44 is: 125,910.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,880.61 : 224,760.03 = 91,245.44 : x
  2. Step 2: Convert to fraction form
    162,880.61/224,760.03 = 91,245.44/x
  3. Step 3: Cross multiply
    162,880.61x = 224,760.03 × 91,245.44
  4. Step 4: Simplify right side
    162,880.61x = 20,508,327,831.76
  5. Step 5: Solve for x
    x = 20,508,327,831.76/162,880.61
  6. Step 6: Final answer
    x = 125,910.19

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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.