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Finding the Fourth Proportional to 425,305.52, 638,082.94 and 125,794.12

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Solution

The fourth proportional to 425,305.52, 638,082.94 and 125,794.12 is: 188,728.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,305.52 : 638,082.94 = 125,794.12 : x
  2. Step 2: Convert to fraction form
    425,305.52/638,082.94 = 125,794.12/x
  3. Step 3: Cross multiply
    425,305.52x = 638,082.94 × 125,794.12
  4. Step 4: Simplify right side
    425,305.52x = 80,267,081,924.31
  5. Step 5: Solve for x
    x = 80,267,081,924.31/425,305.52
  6. Step 6: Final answer
    x = 188,728.05

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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.