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Finding the Fourth Proportional to 203,117.80, 304,062.30 and 180,999.40

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Solution

The fourth proportional to 203,117.80, 304,062.30 and 180,999.40 is: 270,951.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,117.80 : 304,062.30 = 180,999.40 : x
  2. Step 2: Convert to fraction form
    203,117.80/304,062.30 = 180,999.40/x
  3. Step 3: Cross multiply
    203,117.80x = 304,062.30 × 180,999.40
  4. Step 4: Simplify right side
    203,117.80x = 55,035,093,862.62
  5. Step 5: Solve for x
    x = 55,035,093,862.62/203,117.80
  6. Step 6: Final answer
    x = 270,951.60

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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.