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Finding the Fourth Proportional to 193,250.60, 289,926.30 and 74,925.80

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Solution

The fourth proportional to 193,250.60, 289,926.30 and 74,925.80 is: 112,408.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,250.60 : 289,926.30 = 74,925.80 : x
  2. Step 2: Convert to fraction form
    193,250.60/289,926.30 = 74,925.80/x
  3. Step 3: Cross multiply
    193,250.60x = 289,926.30 × 74,925.80
  4. Step 4: Simplify right side
    193,250.60x = 21,722,959,968.54
  5. Step 5: Solve for x
    x = 21,722,959,968.54/193,250.60
  6. Step 6: Final answer
    x = 112,408.24

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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.