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Finding the Fourth Proportional to 164,687.60, 247,031.40 and 40,028.60

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Solution

The fourth proportional to 164,687.60, 247,031.40 and 40,028.60 is: 60,042.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,687.60 : 247,031.40 = 40,028.60 : x
  2. Step 2: Convert to fraction form
    164,687.60/247,031.40 = 40,028.60/x
  3. Step 3: Cross multiply
    164,687.60x = 247,031.40 × 40,028.60
  4. Step 4: Simplify right side
    164,687.60x = 9,888,321,098.04
  5. Step 5: Solve for x
    x = 9,888,321,098.04/164,687.60
  6. Step 6: Final answer
    x = 60,042.90

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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.