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Finding the Fourth Proportional to 49,649.40, 74,474.10 and 44,580.60

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Solution

The fourth proportional to 49,649.40, 74,474.10 and 44,580.60 is: 66,870.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,649.40 : 74,474.10 = 44,580.60 : x
  2. Step 2: Convert to fraction form
    49,649.40/74,474.10 = 44,580.60/x
  3. Step 3: Cross multiply
    49,649.40x = 74,474.10 × 44,580.60
  4. Step 4: Simplify right side
    49,649.40x = 3,320,100,062.46
  5. Step 5: Solve for x
    x = 3,320,100,062.46/49,649.40
  6. Step 6: Final answer
    x = 66,870.90

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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.