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Finding the Fourth Proportional to 275,721,407.60, 413,156,958.60 and 239,158,266.80

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Solution

The fourth proportional to 275,721,407.60, 413,156,958.60 and 239,158,266.80 is: 358,368,626.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,721,407.60 : 413,156,958.60 = 239,158,266.80 : x
  2. Step 2: Convert to fraction form
    275,721,407.60/413,156,958.60 = 239,158,266.80/x
  3. Step 3: Cross multiply
    275,721,407.60x = 413,156,958.60 × 239,158,266.80
  4. Step 4: Simplify right side
    275,721,407.60x = 98,809,902,135,135,360
  5. Step 5: Solve for x
    x = 98,809,902,135,135,360/275,721,407.60
  6. Step 6: Final answer
    x = 358,368,626.49

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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.