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Finding the Fourth Proportional to 121,360.68, 181,987.56 and 65,183.94

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Solution

The fourth proportional to 121,360.68, 181,987.56 and 65,183.94 is: 97,747.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,360.68 : 181,987.56 = 65,183.94 : x
  2. Step 2: Convert to fraction form
    121,360.68/181,987.56 = 65,183.94/x
  3. Step 3: Cross multiply
    121,360.68x = 181,987.56 × 65,183.94
  4. Step 4: Simplify right side
    121,360.68x = 11,862,666,191.79
  5. Step 5: Solve for x
    x = 11,862,666,191.79/121,360.68
  6. Step 6: Final answer
    x = 97,747.20

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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.