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Finding the Fourth Proportional to 251,649.97, 347,291.32 and 144,237.89

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Solution

The fourth proportional to 251,649.97, 347,291.32 and 144,237.89 is: 199,056.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,649.97 : 347,291.32 = 144,237.89 : x
  2. Step 2: Convert to fraction form
    251,649.97/347,291.32 = 144,237.89/x
  3. Step 3: Cross multiply
    251,649.97x = 347,291.32 × 144,237.89
  4. Step 4: Simplify right side
    251,649.97x = 50,092,567,719.75
  5. Step 5: Solve for x
    x = 50,092,567,719.75/251,649.97
  6. Step 6: Final answer
    x = 199,056.52

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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.