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Finding the Fourth Proportional to 60,299.52, 90,349.57 and 20,834.70

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Solution

The fourth proportional to 60,299.52, 90,349.57 and 20,834.70 is: 31,217.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,299.52 : 90,349.57 = 20,834.70 : x
  2. Step 2: Convert to fraction form
    60,299.52/90,349.57 = 20,834.70/x
  3. Step 3: Cross multiply
    60,299.52x = 90,349.57 × 20,834.70
  4. Step 4: Simplify right side
    60,299.52x = 1,882,406,186.08
  5. Step 5: Solve for x
    x = 1,882,406,186.08/60,299.52
  6. Step 6: Final answer
    x = 31,217.60

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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.