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Finding the Fourth Proportional to 164,517.60, 246,430.80 and 90,559.20

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Solution

The fourth proportional to 164,517.60, 246,430.80 and 90,559.20 is: 135,648.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,517.60 : 246,430.80 = 90,559.20 : x
  2. Step 2: Convert to fraction form
    164,517.60/246,430.80 = 90,559.20/x
  3. Step 3: Cross multiply
    164,517.60x = 246,430.80 × 90,559.20
  4. Step 4: Simplify right side
    164,517.60x = 22,316,576,103.36
  5. Step 5: Solve for x
    x = 22,316,576,103.36/164,517.60
  6. Step 6: Final answer
    x = 135,648.56

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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.