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Finding the Fourth Proportional to 121,197.76, 181,833.76 and 62,074.88

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Solution

The fourth proportional to 121,197.76, 181,833.76 and 62,074.88 is: 93,131.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,197.76 : 181,833.76 = 62,074.88 : x
  2. Step 2: Convert to fraction form
    121,197.76/181,833.76 = 62,074.88/x
  3. Step 3: Cross multiply
    121,197.76x = 181,833.76 × 62,074.88
  4. Step 4: Simplify right side
    121,197.76x = 11,287,308,831.95
  5. Step 5: Solve for x
    x = 11,287,308,831.95/121,197.76
  6. Step 6: Final answer
    x = 93,131.33

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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.