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Finding the Fourth Proportional to 132,570.75, 182,947.67 and 72,954.75

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Solution

The fourth proportional to 132,570.75, 182,947.67 and 72,954.75 is: 100,677.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,570.75 : 182,947.67 = 72,954.75 : x
  2. Step 2: Convert to fraction form
    132,570.75/182,947.67 = 72,954.75/x
  3. Step 3: Cross multiply
    132,570.75x = 182,947.67 × 72,954.75
  4. Step 4: Simplify right side
    132,570.75x = 13,346,901,163.16
  5. Step 5: Solve for x
    x = 13,346,901,163.16/132,570.75
  6. Step 6: Final answer
    x = 100,677.57

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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.