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Finding the Fourth Proportional to 72,499.80, 108,576.90 and 44,506.20

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Solution

The fourth proportional to 72,499.80, 108,576.90 and 44,506.20 is: 66,653.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,499.80 : 108,576.90 = 44,506.20 : x
  2. Step 2: Convert to fraction form
    72,499.80/108,576.90 = 44,506.20/x
  3. Step 3: Cross multiply
    72,499.80x = 108,576.90 × 44,506.20
  4. Step 4: Simplify right side
    72,499.80x = 4,832,345,226.78
  5. Step 5: Solve for x
    x = 4,832,345,226.78/72,499.80
  6. Step 6: Final answer
    x = 66,653.22

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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.