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Finding the Fourth Proportional to 183,909.70, 275,864.55 and 154,385.20

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Solution

The fourth proportional to 183,909.70, 275,864.55 and 154,385.20 is: 231,577.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,909.70 : 275,864.55 = 154,385.20 : x
  2. Step 2: Convert to fraction form
    183,909.70/275,864.55 = 154,385.20/x
  3. Step 3: Cross multiply
    183,909.70x = 275,864.55 × 154,385.20
  4. Step 4: Simplify right side
    183,909.70x = 42,589,403,724.66
  5. Step 5: Solve for x
    x = 42,589,403,724.66/183,909.70
  6. Step 6: Final answer
    x = 231,577.80

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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.