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Finding the Fourth Proportional to 251,763.80, 347,405.54 and 148,391.24

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Solution

The fourth proportional to 251,763.80, 347,405.54 and 148,391.24 is: 204,763.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,763.80 : 347,405.54 = 148,391.24 : x
  2. Step 2: Convert to fraction form
    251,763.80/347,405.54 = 148,391.24/x
  3. Step 3: Cross multiply
    251,763.80x = 347,405.54 × 148,391.24
  4. Step 4: Simplify right side
    251,763.80x = 51,551,938,863.47
  5. Step 5: Solve for x
    x = 51,551,938,863.47/251,763.80
  6. Step 6: Final answer
    x = 204,763.11

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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.