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Finding the Fourth Proportional to 193,640.30, 290,422.05 and 93,800.30

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Solution

The fourth proportional to 193,640.30, 290,422.05 and 93,800.30 is: 140,681.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,640.30 : 290,422.05 = 93,800.30 : x
  2. Step 2: Convert to fraction form
    193,640.30/290,422.05 = 93,800.30/x
  3. Step 3: Cross multiply
    193,640.30x = 290,422.05 × 93,800.30
  4. Step 4: Simplify right side
    193,640.30x = 27,241,675,416.62
  5. Step 5: Solve for x
    x = 27,241,675,416.62/193,640.30
  6. Step 6: Final answer
    x = 140,681.85

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1.5x scale

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.