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Finding the Fourth Proportional to 113,096.86, 169,673.23 and 79,881.80

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Solution

The fourth proportional to 113,096.86, 169,673.23 and 79,881.80 is: 119,842.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,096.86 : 169,673.23 = 79,881.80 : x
  2. Step 2: Convert to fraction form
    113,096.86/169,673.23 = 79,881.80/x
  3. Step 3: Cross multiply
    113,096.86x = 169,673.23 × 79,881.80
  4. Step 4: Simplify right side
    113,096.86x = 13,553,802,275.70
  5. Step 5: Solve for x
    x = 13,553,802,275.70/113,096.86
  6. Step 6: Final answer
    x = 119,842.43

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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.