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Finding the Fourth Proportional to 71,743.56, 107,671.50 and 49,711.56

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Solution

The fourth proportional to 71,743.56, 107,671.50 and 49,711.56 is: 74,606.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,743.56 : 107,671.50 = 49,711.56 : x
  2. Step 2: Convert to fraction form
    71,743.56/107,671.50 = 49,711.56/x
  3. Step 3: Cross multiply
    71,743.56x = 107,671.50 × 49,711.56
  4. Step 4: Simplify right side
    71,743.56x = 5,352,518,232.54
  5. Step 5: Solve for x
    x = 5,352,518,232.54/71,743.56
  6. Step 6: Final answer
    x = 74,606.25

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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.