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Finding the Fourth Proportional to 73,047.30, 109,452.15 and 66,048.90

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Solution

The fourth proportional to 73,047.30, 109,452.15 and 66,048.90 is: 98,965.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,047.30 : 109,452.15 = 66,048.90 : x
  2. Step 2: Convert to fraction form
    73,047.30/109,452.15 = 66,048.90/x
  3. Step 3: Cross multiply
    73,047.30x = 109,452.15 × 66,048.90
  4. Step 4: Simplify right side
    73,047.30x = 7,229,194,110.14
  5. Step 5: Solve for x
    x = 7,229,194,110.14/73,047.30
  6. Step 6: Final answer
    x = 98,965.93

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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.