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Finding the Fourth Proportional to 187,280.40, 280,920.60 and 62,621.40

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Solution

The fourth proportional to 187,280.40, 280,920.60 and 62,621.40 is: 93,932.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,280.40 : 280,920.60 = 62,621.40 : x
  2. Step 2: Convert to fraction form
    187,280.40/280,920.60 = 62,621.40/x
  3. Step 3: Cross multiply
    187,280.40x = 280,920.60 × 62,621.40
  4. Step 4: Simplify right side
    187,280.40x = 17,591,641,260.84
  5. Step 5: Solve for x
    x = 17,591,641,260.84/187,280.40
  6. Step 6: Final answer
    x = 93,932.10

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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.