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Finding the Fourth Proportional to 159,812.79, 220,624.55 and 116,743.92

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Solution

The fourth proportional to 159,812.79, 220,624.55 and 116,743.92 is: 161,167.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,812.79 : 220,624.55 = 116,743.92 : x
  2. Step 2: Convert to fraction form
    159,812.79/220,624.55 = 116,743.92/x
  3. Step 3: Cross multiply
    159,812.79x = 220,624.55 × 116,743.92
  4. Step 4: Simplify right side
    159,812.79x = 25,756,575,739.66
  5. Step 5: Solve for x
    x = 25,756,575,739.66/159,812.79
  6. Step 6: Final answer
    x = 161,167.18

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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.