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Finding the Fourth Proportional to 72,206.61, 108,302.76 and 22,273.17

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Solution

The fourth proportional to 72,206.61, 108,302.76 and 22,273.17 is: 33,407.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,206.61 : 108,302.76 = 22,273.17 : x
  2. Step 2: Convert to fraction form
    72,206.61/108,302.76 = 22,273.17/x
  3. Step 3: Cross multiply
    72,206.61x = 108,302.76 × 22,273.17
  4. Step 4: Simplify right side
    72,206.61x = 2,412,245,784.95
  5. Step 5: Solve for x
    x = 2,412,245,784.95/72,206.61
  6. Step 6: Final answer
    x = 33,407.55

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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.