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Finding the Fourth Proportional to 74,609.52, 111,987.72 and 62,208.96

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Solution

The fourth proportional to 74,609.52, 111,987.72 and 62,208.96 is: 93,374.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,609.52 : 111,987.72 = 62,208.96 : x
  2. Step 2: Convert to fraction form
    74,609.52/111,987.72 = 62,208.96/x
  3. Step 3: Cross multiply
    74,609.52x = 111,987.72 × 62,208.96
  4. Step 4: Simplify right side
    74,609.52x = 6,966,639,593.97
  5. Step 5: Solve for x
    x = 6,966,639,593.97/74,609.52
  6. Step 6: Final answer
    x = 93,374.67

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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.