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Finding the Fourth Proportional to 372,938.60, 559,626.60 and 136,305.20

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Solution

The fourth proportional to 372,938.60, 559,626.60 and 136,305.20 is: 204,537.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,938.60 : 559,626.60 = 136,305.20 : x
  2. Step 2: Convert to fraction form
    372,938.60/559,626.60 = 136,305.20/x
  3. Step 3: Cross multiply
    372,938.60x = 559,626.60 × 136,305.20
  4. Step 4: Simplify right side
    372,938.60x = 76,280,015,638.32
  5. Step 5: Solve for x
    x = 76,280,015,638.32/372,938.60
  6. Step 6: Final answer
    x = 204,537.73

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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.