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Finding the Fourth Proportional to 193,366.78, 266,847.02 and 108,478.38

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Solution

The fourth proportional to 193,366.78, 266,847.02 and 108,478.38 is: 149,700.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,366.78 : 266,847.02 = 108,478.38 : x
  2. Step 2: Convert to fraction form
    193,366.78/266,847.02 = 108,478.38/x
  3. Step 3: Cross multiply
    193,366.78x = 266,847.02 × 108,478.38
  4. Step 4: Simplify right side
    193,366.78x = 28,947,132,437.43
  5. Step 5: Solve for x
    x = 28,947,132,437.43/193,366.78
  6. Step 6: Final answer
    x = 149,700.65

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1.5x scale

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.