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Finding the Fourth Proportional to 162,649.95, 224,456.58 and 91,043.79

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Solution

The fourth proportional to 162,649.95, 224,456.58 and 91,043.79 is: 125,640.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,649.95 : 224,456.58 = 91,043.79 : x
  2. Step 2: Convert to fraction form
    162,649.95/224,456.58 = 91,043.79/x
  3. Step 3: Cross multiply
    162,649.95x = 224,456.58 × 91,043.79
  4. Step 4: Simplify right side
    162,649.95x = 20,435,377,733.64
  5. Step 5: Solve for x
    x = 20,435,377,733.64/162,649.95
  6. Step 6: Final answer
    x = 125,640.23

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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.