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Finding the Fourth Proportional to 341,680,885.44, 512,608,691.52 and 99,343,789.44

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Solution

The fourth proportional to 341,680,885.44, 512,608,691.52 and 99,343,789.44 is: 149,041,085.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,680,885.44 : 512,608,691.52 = 99,343,789.44 : x
  2. Step 2: Convert to fraction form
    341,680,885.44/512,608,691.52 = 99,343,789.44/x
  3. Step 3: Cross multiply
    341,680,885.44x = 512,608,691.52 × 99,343,789.44
  4. Step 4: Simplify right side
    341,680,885.44x = 50,924,489,915,476,792
  5. Step 5: Solve for x
    x = 50,924,489,915,476,792/341,680,885.44
  6. Step 6: Final answer
    x = 149,041,085.08

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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.