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Finding the Fourth Proportional to 103,480.57, 155,216.54 and 29,608.57

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Solution

The fourth proportional to 103,480.57, 155,216.54 and 29,608.57 is: 44,411.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,480.57 : 155,216.54 = 29,608.57 : x
  2. Step 2: Convert to fraction form
    103,480.57/155,216.54 = 29,608.57/x
  3. Step 3: Cross multiply
    103,480.57x = 155,216.54 × 29,608.57
  4. Step 4: Simplify right side
    103,480.57x = 4,595,739,641.70
  5. Step 5: Solve for x
    x = 4,595,739,641.70/103,480.57
  6. Step 6: Final answer
    x = 44,411.62

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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.