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Finding the Fourth Proportional to 73,513.20, 110,051.10 and 43,915.80

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Solution

The fourth proportional to 73,513.20, 110,051.10 and 43,915.80 is: 65,743.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,513.20 : 110,051.10 = 43,915.80 : x
  2. Step 2: Convert to fraction form
    73,513.20/110,051.10 = 43,915.80/x
  3. Step 3: Cross multiply
    73,513.20x = 110,051.10 × 43,915.80
  4. Step 4: Simplify right side
    73,513.20x = 4,832,982,097.38
  5. Step 5: Solve for x
    x = 4,832,982,097.38/73,513.20
  6. Step 6: Final answer
    x = 65,743.05

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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.