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Finding the Fourth Proportional to 74,483.10, 111,706.29 and 44,505.90

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Solution

The fourth proportional to 74,483.10, 111,706.29 and 44,505.90 is: 66,747.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,483.10 : 111,706.29 = 44,505.90 : x
  2. Step 2: Convert to fraction form
    74,483.10/111,706.29 = 44,505.90/x
  3. Step 3: Cross multiply
    74,483.10x = 111,706.29 × 44,505.90
  4. Step 4: Simplify right side
    74,483.10x = 4,971,588,972.11
  5. Step 5: Solve for x
    x = 4,971,588,972.11/74,483.10
  6. Step 6: Final answer
    x = 66,747.88

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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.