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Finding the Fourth Proportional to 251,405.83, 347,013.62 and 149,503.11

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Solution

The fourth proportional to 251,405.83, 347,013.62 and 149,503.11 is: 206,358.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,405.83 : 347,013.62 = 149,503.11 : x
  2. Step 2: Convert to fraction form
    251,405.83/347,013.62 = 149,503.11/x
  3. Step 3: Cross multiply
    251,405.83x = 347,013.62 × 149,503.11
  4. Step 4: Simplify right side
    251,405.83x = 51,879,615,402.36
  5. Step 5: Solve for x
    x = 51,879,615,402.36/251,405.83
  6. Step 6: Final answer
    x = 206,358.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.