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Finding the Fourth Proportional to 445,203.84, 667,813.08 and 125,363.40

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Solution

The fourth proportional to 445,203.84, 667,813.08 and 125,363.40 is: 188,047.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,203.84 : 667,813.08 = 125,363.40 : x
  2. Step 2: Convert to fraction form
    445,203.84/667,813.08 = 125,363.40/x
  3. Step 3: Cross multiply
    445,203.84x = 667,813.08 × 125,363.40
  4. Step 4: Simplify right side
    445,203.84x = 83,719,318,273.27
  5. Step 5: Solve for x
    x = 83,719,318,273.27/445,203.84
  6. Step 6: Final answer
    x = 188,047.16

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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.