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Finding the Fourth Proportional to 64,391.40, 96,587.10 and 44,346.60

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Solution

The fourth proportional to 64,391.40, 96,587.10 and 44,346.60 is: 66,519.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,391.40 : 96,587.10 = 44,346.60 : x
  2. Step 2: Convert to fraction form
    64,391.40/96,587.10 = 44,346.60/x
  3. Step 3: Cross multiply
    64,391.40x = 96,587.10 × 44,346.60
  4. Step 4: Simplify right side
    64,391.40x = 4,283,309,488.86
  5. Step 5: Solve for x
    x = 4,283,309,488.86/64,391.40
  6. Step 6: Final answer
    x = 66,519.90

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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.