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Finding the Fourth Proportional to 72,207.88, 108,270.14 and 22,274.57

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Solution

The fourth proportional to 72,207.88, 108,270.14 and 22,274.57 is: 33,399.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,207.88 : 108,270.14 = 22,274.57 : x
  2. Step 2: Convert to fraction form
    72,207.88/108,270.14 = 22,274.57/x
  3. Step 3: Cross multiply
    72,207.88x = 108,270.14 × 22,274.57
  4. Step 4: Simplify right side
    72,207.88x = 2,411,670,971.64
  5. Step 5: Solve for x
    x = 2,411,670,971.64/72,207.88
  6. Step 6: Final answer
    x = 33,399.00

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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.