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Finding the Fourth Proportional to 179,707.60, 269,658.60 and 74,537.20

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Solution

The fourth proportional to 179,707.60, 269,658.60 and 74,537.20 is: 111,846.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,707.60 : 269,658.60 = 74,537.20 : x
  2. Step 2: Convert to fraction form
    179,707.60/269,658.60 = 74,537.20/x
  3. Step 3: Cross multiply
    179,707.60x = 269,658.60 × 74,537.20
  4. Step 4: Simplify right side
    179,707.60x = 20,099,596,999.92
  5. Step 5: Solve for x
    x = 20,099,596,999.92/179,707.60
  6. Step 6: Final answer
    x = 111,846.12

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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.