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Finding the Fourth Proportional to 72,299.64, 108,454.62 and 22,373.31

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Solution

The fourth proportional to 72,299.64, 108,454.62 and 22,373.31 is: 33,561.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,299.64 : 108,454.62 = 22,373.31 : x
  2. Step 2: Convert to fraction form
    72,299.64/108,454.62 = 22,373.31/x
  3. Step 3: Cross multiply
    72,299.64x = 108,454.62 × 22,373.31
  4. Step 4: Simplify right side
    72,299.64x = 2,426,489,261.87
  5. Step 5: Solve for x
    x = 2,426,489,261.87/72,299.64
  6. Step 6: Final answer
    x = 33,561.57

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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.