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Finding the Fourth Proportional to 60,815.96, 91,223.90 and 44,281.20

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Solution

The fourth proportional to 60,815.96, 91,223.90 and 44,281.20 is: 66,421.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,815.96 : 91,223.90 = 44,281.20 : x
  2. Step 2: Convert to fraction form
    60,815.96/91,223.90 = 44,281.20/x
  3. Step 3: Cross multiply
    60,815.96x = 91,223.90 × 44,281.20
  4. Step 4: Simplify right side
    60,815.96x = 4,039,503,760.68
  5. Step 5: Solve for x
    x = 4,039,503,760.68/60,815.96
  6. Step 6: Final answer
    x = 66,421.77

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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.