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Finding the Fourth Proportional to 73,147.88, 109,710.60 and 23,221.46

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Solution

The fourth proportional to 73,147.88, 109,710.60 and 23,221.46 is: 34,828.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,147.88 : 109,710.60 = 23,221.46 : x
  2. Step 2: Convert to fraction form
    73,147.88/109,710.60 = 23,221.46/x
  3. Step 3: Cross multiply
    73,147.88x = 109,710.60 × 23,221.46
  4. Step 4: Simplify right side
    73,147.88x = 2,547,640,309.48
  5. Step 5: Solve for x
    x = 2,547,640,309.48/73,147.88
  6. Step 6: Final answer
    x = 34,828.63

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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.