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Finding the Fourth Proportional to 340,767.90, 511,176.15 and 104,110.20

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Solution

The fourth proportional to 340,767.90, 511,176.15 and 104,110.20 is: 156,172.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,767.90 : 511,176.15 = 104,110.20 : x
  2. Step 2: Convert to fraction form
    340,767.90/511,176.15 = 104,110.20/x
  3. Step 3: Cross multiply
    340,767.90x = 511,176.15 × 104,110.20
  4. Step 4: Simplify right side
    340,767.90x = 53,218,651,211.73
  5. Step 5: Solve for x
    x = 53,218,651,211.73/340,767.90
  6. Step 6: Final answer
    x = 156,172.72

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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.