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Finding the Fourth Proportional to 69,081.92, 103,611.88 and 24,700.40

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Solution

The fourth proportional to 69,081.92, 103,611.88 and 24,700.40 is: 37,046.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,081.92 : 103,611.88 = 24,700.40 : x
  2. Step 2: Convert to fraction form
    69,081.92/103,611.88 = 24,700.40/x
  3. Step 3: Cross multiply
    69,081.92x = 103,611.88 × 24,700.40
  4. Step 4: Simplify right side
    69,081.92x = 2,559,254,880.75
  5. Step 5: Solve for x
    x = 2,559,254,880.75/69,081.92
  6. Step 6: Final answer
    x = 37,046.67

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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.