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Finding the Fourth Proportional to 136,711.67, 188,675.15 and 82,984.37

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Solution

The fourth proportional to 136,711.67, 188,675.15 and 82,984.37 is: 114,526.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,711.67 : 188,675.15 = 82,984.37 : x
  2. Step 2: Convert to fraction form
    136,711.67/188,675.15 = 82,984.37/x
  3. Step 3: Cross multiply
    136,711.67x = 188,675.15 × 82,984.37
  4. Step 4: Simplify right side
    136,711.67x = 15,657,087,099.11
  5. Step 5: Solve for x
    x = 15,657,087,099.11/136,711.67
  6. Step 6: Final answer
    x = 114,526.34

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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.