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Finding the Fourth Proportional to 127,351.86, 190,765.29 and 74,601.42

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Solution

The fourth proportional to 127,351.86, 190,765.29 and 74,601.42 is: 111,748.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,351.86 : 190,765.29 = 74,601.42 : x
  2. Step 2: Convert to fraction form
    127,351.86/190,765.29 = 74,601.42/x
  3. Step 3: Cross multiply
    127,351.86x = 190,765.29 × 74,601.42
  4. Step 4: Simplify right side
    127,351.86x = 14,231,361,520.71
  5. Step 5: Solve for x
    x = 14,231,361,520.71/127,351.86
  6. Step 6: Final answer
    x = 111,748.36

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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.