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Finding the Fourth Proportional to 86,336.69, 129,523.56 and 48,914.69

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Solution

The fourth proportional to 86,336.69, 129,523.56 and 48,914.69 is: 73,382.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,336.69 : 129,523.56 = 48,914.69 : x
  2. Step 2: Convert to fraction form
    86,336.69/129,523.56 = 48,914.69/x
  3. Step 3: Cross multiply
    86,336.69x = 129,523.56 × 48,914.69
  4. Step 4: Simplify right side
    86,336.69x = 6,335,603,954.05
  5. Step 5: Solve for x
    x = 6,335,603,954.05/86,336.69
  6. Step 6: Final answer
    x = 73,382.53

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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.