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Finding the Fourth Proportional to 116,489.91, 174,624.13 and 74,251.42

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Solution

The fourth proportional to 116,489.91, 174,624.13 and 74,251.42 is: 111,306.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,489.91 : 174,624.13 = 74,251.42 : x
  2. Step 2: Convert to fraction form
    116,489.91/174,624.13 = 74,251.42/x
  3. Step 3: Cross multiply
    116,489.91x = 174,624.13 × 74,251.42
  4. Step 4: Simplify right side
    116,489.91x = 12,966,089,802.88
  5. Step 5: Solve for x
    x = 12,966,089,802.88/116,489.91
  6. Step 6: Final answer
    x = 111,306.55

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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.