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Finding the Fourth Proportional to 72,348.32, 108,539.31 and 22,425.77

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Solution

The fourth proportional to 72,348.32, 108,539.31 and 22,425.77 is: 33,643.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,348.32 : 108,539.31 = 22,425.77 : x
  2. Step 2: Convert to fraction form
    72,348.32/108,539.31 = 22,425.77/x
  3. Step 3: Cross multiply
    72,348.32x = 108,539.31 × 22,425.77
  4. Step 4: Simplify right side
    72,348.32x = 2,434,077,602.02
  5. Step 5: Solve for x
    x = 2,434,077,602.02/72,348.32
  6. Step 6: Final answer
    x = 33,643.87

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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.