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Finding the Fourth Proportional to 45,889.80, 68,834.70 and 44,140.20

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Solution

The fourth proportional to 45,889.80, 68,834.70 and 44,140.20 is: 66,210.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,889.80 : 68,834.70 = 44,140.20 : x
  2. Step 2: Convert to fraction form
    45,889.80/68,834.70 = 44,140.20/x
  3. Step 3: Cross multiply
    45,889.80x = 68,834.70 × 44,140.20
  4. Step 4: Simplify right side
    45,889.80x = 3,038,377,424.94
  5. Step 5: Solve for x
    x = 3,038,377,424.94/45,889.80
  6. Step 6: Final answer
    x = 66,210.30

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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.