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Finding the Fourth Proportional to 174,559.80, 261,839.70 and 161,729.40

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Solution

The fourth proportional to 174,559.80, 261,839.70 and 161,729.40 is: 242,594.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,559.80 : 261,839.70 = 161,729.40 : x
  2. Step 2: Convert to fraction form
    174,559.80/261,839.70 = 161,729.40/x
  3. Step 3: Cross multiply
    174,559.80x = 261,839.70 × 161,729.40
  4. Step 4: Simplify right side
    174,559.80x = 42,347,177,577.18
  5. Step 5: Solve for x
    x = 42,347,177,577.18/174,559.80
  6. Step 6: Final answer
    x = 242,594.10

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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.