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Finding the Fourth Proportional to 83,297.75, 124,970.85 and 29,988.77

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Solution

The fourth proportional to 83,297.75, 124,970.85 and 29,988.77 is: 44,991.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,297.75 : 124,970.85 = 29,988.77 : x
  2. Step 2: Convert to fraction form
    83,297.75/124,970.85 = 29,988.77/x
  3. Step 3: Cross multiply
    83,297.75x = 124,970.85 × 29,988.77
  4. Step 4: Simplify right side
    83,297.75x = 3,747,721,452.50
  5. Step 5: Solve for x
    x = 3,747,721,452.50/83,297.75
  6. Step 6: Final answer
    x = 44,991.87

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1.5x scale

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.