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Finding the Fourth Proportional to 251,514.87, 347,139.83 and 144,156.85

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Solution

The fourth proportional to 251,514.87, 347,139.83 and 144,156.85 is: 198,964.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,514.87 : 347,139.83 = 144,156.85 : x
  2. Step 2: Convert to fraction form
    251,514.87/347,139.83 = 144,156.85/x
  3. Step 3: Cross multiply
    251,514.87x = 347,139.83 × 144,156.85
  4. Step 4: Simplify right side
    251,514.87x = 50,042,583,681.55
  5. Step 5: Solve for x
    x = 50,042,583,681.55/251,514.87
  6. Step 6: Final answer
    x = 198,964.72

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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.