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Finding the Fourth Proportional to 193,336.88, 266,806.71 and 108,455.76

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Solution

The fourth proportional to 193,336.88, 266,806.71 and 108,455.76 is: 149,669.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,336.88 : 266,806.71 = 108,455.76 : x
  2. Step 2: Convert to fraction form
    193,336.88/266,806.71 = 108,455.76/x
  3. Step 3: Cross multiply
    193,336.88x = 266,806.71 × 108,455.76
  4. Step 4: Simplify right side
    193,336.88x = 28,936,724,506.15
  5. Step 5: Solve for x
    x = 28,936,724,506.15/193,336.88
  6. Step 6: Final answer
    x = 149,669.97

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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.