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Finding the Fourth Proportional to 312,264.49, 468,461.54 and 125,290.57

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Solution

The fourth proportional to 312,264.49, 468,461.54 and 125,290.57 is: 187,961.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,264.49 : 468,461.54 = 125,290.57 : x
  2. Step 2: Convert to fraction form
    312,264.49/468,461.54 = 125,290.57/x
  3. Step 3: Cross multiply
    312,264.49x = 468,461.54 × 125,290.57
  4. Step 4: Simplify right side
    312,264.49x = 58,693,813,369.68
  5. Step 5: Solve for x
    x = 58,693,813,369.68/312,264.49
  6. Step 6: Final answer
    x = 187,961.86

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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.