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Finding the Fourth Proportional to 183,412.80, 275,080.80 and 89,985.60

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Solution

The fourth proportional to 183,412.80, 275,080.80 and 89,985.60 is: 134,959.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,412.80 : 275,080.80 = 89,985.60 : x
  2. Step 2: Convert to fraction form
    183,412.80/275,080.80 = 89,985.60/x
  3. Step 3: Cross multiply
    183,412.80x = 275,080.80 × 89,985.60
  4. Step 4: Simplify right side
    183,412.80x = 24,753,310,836.48
  5. Step 5: Solve for x
    x = 24,753,310,836.48/183,412.80
  6. Step 6: Final answer
    x = 134,959.56

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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.