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Finding the Fourth Proportional to 127,773.78, 191,407.14 and 60,213.30

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Solution

The fourth proportional to 127,773.78, 191,407.14 and 60,213.30 is: 90,200.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,773.78 : 191,407.14 = 60,213.30 : x
  2. Step 2: Convert to fraction form
    127,773.78/191,407.14 = 60,213.30/x
  3. Step 3: Cross multiply
    127,773.78x = 191,407.14 × 60,213.30
  4. Step 4: Simplify right side
    127,773.78x = 11,525,255,542.96
  5. Step 5: Solve for x
    x = 11,525,255,542.96/127,773.78
  6. Step 6: Final answer
    x = 90,200.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.