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Finding the Fourth Proportional to 372,279.30, 558,649.80 and 194,913.60

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Solution

The fourth proportional to 372,279.30, 558,649.80 and 194,913.60 is: 292,491.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,279.30 : 558,649.80 = 194,913.60 : x
  2. Step 2: Convert to fraction form
    372,279.30/558,649.80 = 194,913.60/x
  3. Step 3: Cross multiply
    372,279.30x = 558,649.80 × 194,913.60
  4. Step 4: Simplify right side
    372,279.30x = 108,888,443,657.28
  5. Step 5: Solve for x
    x = 108,888,443,657.28/372,279.30
  6. Step 6: Final answer
    x = 292,491.27

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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.