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Finding the Fourth Proportional to 247,374.41, 370,972.10 and 105,229.13

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Solution

The fourth proportional to 247,374.41, 370,972.10 and 105,229.13 is: 157,805.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,374.41 : 370,972.10 = 105,229.13 : x
  2. Step 2: Convert to fraction form
    247,374.41/370,972.10 = 105,229.13/x
  3. Step 3: Cross multiply
    247,374.41x = 370,972.10 × 105,229.13
  4. Step 4: Simplify right side
    247,374.41x = 39,037,069,745.49
  5. Step 5: Solve for x
    x = 39,037,069,745.49/247,374.41
  6. Step 6: Final answer
    x = 157,805.61

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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.