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Finding the Fourth Proportional to 74,981.88, 112,493.88 and 22,393.44

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Solution

The fourth proportional to 74,981.88, 112,493.88 and 22,393.44 is: 33,596.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,981.88 : 112,493.88 = 22,393.44 : x
  2. Step 2: Convert to fraction form
    74,981.88/112,493.88 = 22,393.44/x
  3. Step 3: Cross multiply
    74,981.88x = 112,493.88 × 22,393.44
  4. Step 4: Simplify right side
    74,981.88x = 2,519,124,952.15
  5. Step 5: Solve for x
    x = 2,519,124,952.15/74,981.88
  6. Step 6: Final answer
    x = 33,596.45

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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.