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Finding the Fourth Proportional to 116,324.48, 160,486.89 and 76,061.81

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Solution

The fourth proportional to 116,324.48, 160,486.89 and 76,061.81 is: 104,938.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,324.48 : 160,486.89 = 76,061.81 : x
  2. Step 2: Convert to fraction form
    116,324.48/160,486.89 = 76,061.81/x
  3. Step 3: Cross multiply
    116,324.48x = 160,486.89 × 76,061.81
  4. Step 4: Simplify right side
    116,324.48x = 12,206,922,722.39
  5. Step 5: Solve for x
    x = 12,206,922,722.39/116,324.48
  6. Step 6: Final answer
    x = 104,938.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.