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Finding the Fourth Proportional to 296,218.80, 443,939.40 and 118,580.40

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Solution

The fourth proportional to 296,218.80, 443,939.40 and 118,580.40 is: 177,714.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,218.80 : 443,939.40 = 118,580.40 : x
  2. Step 2: Convert to fraction form
    296,218.80/443,939.40 = 118,580.40/x
  3. Step 3: Cross multiply
    296,218.80x = 443,939.40 × 118,580.40
  4. Step 4: Simplify right side
    296,218.80x = 52,642,511,627.76
  5. Step 5: Solve for x
    x = 52,642,511,627.76/296,218.80
  6. Step 6: Final answer
    x = 177,714.96

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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.