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Finding the Fourth Proportional to 72,825.75, 109,246.86 and 22,913.01

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Solution

The fourth proportional to 72,825.75, 109,246.86 and 22,913.01 is: 34,372.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,825.75 : 109,246.86 = 22,913.01 : x
  2. Step 2: Convert to fraction form
    72,825.75/109,246.86 = 22,913.01/x
  3. Step 3: Cross multiply
    72,825.75x = 109,246.86 × 22,913.01
  4. Step 4: Simplify right side
    72,825.75x = 2,503,174,395.65
  5. Step 5: Solve for x
    x = 2,503,174,395.65/72,825.75
  6. Step 6: Final answer
    x = 34,372.11

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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.