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Finding the Fourth Proportional to 247,543.40, 371,255.57 and 114,295.57

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Solution

The fourth proportional to 247,543.40, 371,255.57 and 114,295.57 is: 171,415.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,543.40 : 371,255.57 = 114,295.57 : x
  2. Step 2: Convert to fraction form
    247,543.40/371,255.57 = 114,295.57/x
  3. Step 3: Cross multiply
    247,543.40x = 371,255.57 × 114,295.57
  4. Step 4: Simplify right side
    247,543.40x = 42,432,865,917.82
  5. Step 5: Solve for x
    x = 42,432,865,917.82/247,543.40
  6. Step 6: Final answer
    x = 171,415.86

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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.