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Finding the Fourth Proportional to 64,891.20, 97,269.60 and 35,246.40

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Solution

The fourth proportional to 64,891.20, 97,269.60 and 35,246.40 is: 52,833.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,891.20 : 97,269.60 = 35,246.40 : x
  2. Step 2: Convert to fraction form
    64,891.20/97,269.60 = 35,246.40/x
  3. Step 3: Cross multiply
    64,891.20x = 97,269.60 × 35,246.40
  4. Step 4: Simplify right side
    64,891.20x = 3,428,403,229.44
  5. Step 5: Solve for x
    x = 3,428,403,229.44/64,891.20
  6. Step 6: Final answer
    x = 52,833.10

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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.