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Finding the Fourth Proportional to 165,625.60, 248,438.40 and 40,966.60

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Solution

The fourth proportional to 165,625.60, 248,438.40 and 40,966.60 is: 61,449.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,625.60 : 248,438.40 = 40,966.60 : x
  2. Step 2: Convert to fraction form
    165,625.60/248,438.40 = 40,966.60/x
  3. Step 3: Cross multiply
    165,625.60x = 248,438.40 × 40,966.60
  4. Step 4: Simplify right side
    165,625.60x = 10,177,676,557.44
  5. Step 5: Solve for x
    x = 10,177,676,557.44/165,625.60
  6. Step 6: Final answer
    x = 61,449.90

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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.