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Finding the Fourth Proportional to 74,422.40, 111,631.80 and 44,817.80

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Solution

The fourth proportional to 74,422.40, 111,631.80 and 44,817.80 is: 67,225.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,422.40 : 111,631.80 = 44,817.80 : x
  2. Step 2: Convert to fraction form
    74,422.40/111,631.80 = 44,817.80/x
  3. Step 3: Cross multiply
    74,422.40x = 111,631.80 × 44,817.80
  4. Step 4: Simplify right side
    74,422.40x = 5,003,091,686.04
  5. Step 5: Solve for x
    x = 5,003,091,686.04/74,422.40
  6. Step 6: Final answer
    x = 67,225.62

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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.