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Finding the Fourth Proportional to 125,976, 173,846.94 and 69,387.42

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Solution

The fourth proportional to 125,976, 173,846.94 and 69,387.42 is: 95,754.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,976 : 173,846.94 = 69,387.42 : x
  2. Step 2: Convert to fraction form
    125,976/173,846.94 = 69,387.42/x
  3. Step 3: Cross multiply
    125,976x = 173,846.94 × 69,387.42
  4. Step 4: Simplify right side
    125,976x = 12,062,790,641.49
  5. Step 5: Solve for x
    x = 12,062,790,641.49/125,976
  6. Step 6: Final answer
    x = 95,754.67

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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.