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Finding the Fourth Proportional to 64,082.90, 96,069.62 and 45,303.86

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Solution

The fourth proportional to 64,082.90, 96,069.62 and 45,303.86 is: 67,917.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,082.90 : 96,069.62 = 45,303.86 : x
  2. Step 2: Convert to fraction form
    64,082.90/96,069.62 = 45,303.86/x
  3. Step 3: Cross multiply
    64,082.90x = 96,069.62 × 45,303.86
  4. Step 4: Simplify right side
    64,082.90x = 4,352,324,614.73
  5. Step 5: Solve for x
    x = 4,352,324,614.73/64,082.90
  6. Step 6: Final answer
    x = 67,917.10

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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.