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Finding the Fourth Proportional to 103,684.76, 143,085.27 and 58,363.44

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Solution

The fourth proportional to 103,684.76, 143,085.27 and 58,363.44 is: 80,541.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,684.76 : 143,085.27 = 58,363.44 : x
  2. Step 2: Convert to fraction form
    103,684.76/143,085.27 = 58,363.44/x
  3. Step 3: Cross multiply
    103,684.76x = 143,085.27 × 58,363.44
  4. Step 4: Simplify right side
    103,684.76x = 8,350,948,170.75
  5. Step 5: Solve for x
    x = 8,350,948,170.75/103,684.76
  6. Step 6: Final answer
    x = 80,541.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.