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Finding the Fourth Proportional to 193,275.60, 289,964.60 and 68,603.60

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Solution

The fourth proportional to 193,275.60, 289,964.60 and 68,603.60 is: 102,923.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,275.60 : 289,964.60 = 68,603.60 : x
  2. Step 2: Convert to fraction form
    193,275.60/289,964.60 = 68,603.60/x
  3. Step 3: Cross multiply
    193,275.60x = 289,964.60 × 68,603.60
  4. Step 4: Simplify right side
    193,275.60x = 19,892,615,432.56
  5. Step 5: Solve for x
    x = 19,892,615,432.56/193,275.60
  6. Step 6: Final answer
    x = 102,923.57

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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.