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Finding the Fourth Proportional to 193,019.62, 266,360.62 and 106,974.94

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Solution

The fourth proportional to 193,019.62, 266,360.62 and 106,974.94 is: 147,621.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,019.62 : 266,360.62 = 106,974.94 : x
  2. Step 2: Convert to fraction form
    193,019.62/266,360.62 = 106,974.94/x
  3. Step 3: Cross multiply
    193,019.62x = 266,360.62 × 106,974.94
  4. Step 4: Simplify right side
    193,019.62x = 28,493,911,342.86
  5. Step 5: Solve for x
    x = 28,493,911,342.86/193,019.62
  6. Step 6: Final answer
    x = 147,621.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.