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Finding the Fourth Proportional to 251,649.64, 347,290.87 and 144,237.56

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Solution

The fourth proportional to 251,649.64, 347,290.87 and 144,237.56 is: 199,056.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,649.64 : 347,290.87 = 144,237.56 : x
  2. Step 2: Convert to fraction form
    251,649.64/347,290.87 = 144,237.56/x
  3. Step 3: Cross multiply
    251,649.64x = 347,290.87 × 144,237.56
  4. Step 4: Simplify right side
    251,649.64x = 50,092,387,420.32
  5. Step 5: Solve for x
    x = 50,092,387,420.32/251,649.64
  6. Step 6: Final answer
    x = 199,056.07

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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.