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Finding the Fourth Proportional to 276,363.60, 414,545.40 and 191,945.40

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Solution

The fourth proportional to 276,363.60, 414,545.40 and 191,945.40 is: 287,918.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,363.60 : 414,545.40 = 191,945.40 : x
  2. Step 2: Convert to fraction form
    276,363.60/414,545.40 = 191,945.40/x
  3. Step 3: Cross multiply
    276,363.60x = 414,545.40 × 191,945.40
  4. Step 4: Simplify right side
    276,363.60x = 79,570,082,621.16
  5. Step 5: Solve for x
    x = 79,570,082,621.16/276,363.60
  6. Step 6: Final answer
    x = 287,918.10

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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.