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Finding the Fourth Proportional to 251,282.88, 347,078.16 and 187,902.72

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Solution

The fourth proportional to 251,282.88, 347,078.16 and 187,902.72 is: 259,535.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,282.88 : 347,078.16 = 187,902.72 : x
  2. Step 2: Convert to fraction form
    251,282.88/347,078.16 = 187,902.72/x
  3. Step 3: Cross multiply
    251,282.88x = 347,078.16 × 187,902.72
  4. Step 4: Simplify right side
    251,282.88x = 65,216,930,316.60
  5. Step 5: Solve for x
    x = 65,216,930,316.60/251,282.88
  6. Step 6: Final answer
    x = 259,535.91

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1.5x scale

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.