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Finding the Fourth Proportional to 132,912.14, 183,418.21 and 72,482.63

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Solution

The fourth proportional to 132,912.14, 183,418.21 and 72,482.63 is: 100,025.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,912.14 : 183,418.21 = 72,482.63 : x
  2. Step 2: Convert to fraction form
    132,912.14/183,418.21 = 72,482.63/x
  3. Step 3: Cross multiply
    132,912.14x = 183,418.21 × 72,482.63
  4. Step 4: Simplify right side
    132,912.14x = 13,294,634,250.69
  5. Step 5: Solve for x
    x = 13,294,634,250.69/132,912.14
  6. Step 6: Final answer
    x = 100,025.73

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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.