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Finding the Fourth Proportional to 251,649.72, 347,290.98 and 144,237.64

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Solution

The fourth proportional to 251,649.72, 347,290.98 and 144,237.64 is: 199,056.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,649.72 : 347,290.98 = 144,237.64 : x
  2. Step 2: Convert to fraction form
    251,649.72/347,290.98 = 144,237.64/x
  3. Step 3: Cross multiply
    251,649.72x = 347,290.98 × 144,237.64
  4. Step 4: Simplify right side
    251,649.72x = 50,092,430,627.30
  5. Step 5: Solve for x
    x = 50,092,430,627.30/251,649.72
  6. Step 6: Final answer
    x = 199,056.18

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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.