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Finding the Fourth Proportional to 72,476.59, 108,752.88 and 52,649.86

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Solution

The fourth proportional to 72,476.59, 108,752.88 and 52,649.86 is: 79,002.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,476.59 : 108,752.88 = 52,649.86 : x
  2. Step 2: Convert to fraction form
    72,476.59/108,752.88 = 52,649.86/x
  3. Step 3: Cross multiply
    72,476.59x = 108,752.88 × 52,649.86
  4. Step 4: Simplify right side
    72,476.59x = 5,725,823,906.60
  5. Step 5: Solve for x
    x = 5,725,823,906.60/72,476.59
  6. Step 6: Final answer
    x = 79,002.39

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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.