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Finding the Fourth Proportional to 72,356.32, 108,551.36 and 22,433.80

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Solution

The fourth proportional to 72,356.32, 108,551.36 and 22,433.80 is: 33,655.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,356.32 : 108,551.36 = 22,433.80 : x
  2. Step 2: Convert to fraction form
    72,356.32/108,551.36 = 22,433.80/x
  3. Step 3: Cross multiply
    72,356.32x = 108,551.36 × 22,433.80
  4. Step 4: Simplify right side
    72,356.32x = 2,435,219,499.97
  5. Step 5: Solve for x
    x = 2,435,219,499.97/72,356.32
  6. Step 6: Final answer
    x = 33,655.93

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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.