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Finding the Fourth Proportional to 57,315.66, 85,847.13 and 44,815.74

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Solution

The fourth proportional to 57,315.66, 85,847.13 and 44,815.74 is: 67,124.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,315.66 : 85,847.13 = 44,815.74 : x
  2. Step 2: Convert to fraction form
    57,315.66/85,847.13 = 44,815.74/x
  3. Step 3: Cross multiply
    57,315.66x = 85,847.13 × 44,815.74
  4. Step 4: Simplify right side
    57,315.66x = 3,847,302,657.83
  5. Step 5: Solve for x
    x = 3,847,302,657.83/57,315.66
  6. Step 6: Final answer
    x = 67,124.81

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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.