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Finding the Fourth Proportional to 251,473.90, 347,037.42 and 144,043.87

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Solution

The fourth proportional to 251,473.90, 347,037.42 and 144,043.87 is: 198,782.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,473.90 : 347,037.42 = 144,043.87 : x
  2. Step 2: Convert to fraction form
    251,473.90/347,037.42 = 144,043.87/x
  3. Step 3: Cross multiply
    251,473.90x = 347,037.42 × 144,043.87
  4. Step 4: Simplify right side
    251,473.90x = 49,988,613,011.62
  5. Step 5: Solve for x
    x = 49,988,613,011.62/251,473.90
  6. Step 6: Final answer
    x = 198,782.51

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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.