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Finding the Fourth Proportional to 127,963.99, 191,765.56 and 60,423.96

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Solution

The fourth proportional to 127,963.99, 191,765.56 and 60,423.96 is: 90,550.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,963.99 : 191,765.56 = 60,423.96 : x
  2. Step 2: Convert to fraction form
    127,963.99/191,765.56 = 60,423.96/x
  3. Step 3: Cross multiply
    127,963.99x = 191,765.56 × 60,423.96
  4. Step 4: Simplify right side
    127,963.99x = 11,587,234,526.82
  5. Step 5: Solve for x
    x = 11,587,234,526.82/127,963.99
  6. Step 6: Final answer
    x = 90,550.74

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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.