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Finding the Fourth Proportional to 69,855.93, 96,487.74 and 50,705.10

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Solution

The fourth proportional to 69,855.93, 96,487.74 and 50,705.10 is: 70,035.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,855.93 : 96,487.74 = 50,705.10 : x
  2. Step 2: Convert to fraction form
    69,855.93/96,487.74 = 50,705.10/x
  3. Step 3: Cross multiply
    69,855.93x = 96,487.74 × 50,705.10
  4. Step 4: Simplify right side
    69,855.93x = 4,892,420,505.47
  5. Step 5: Solve for x
    x = 4,892,420,505.47/69,855.93
  6. Step 6: Final answer
    x = 70,035.87

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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.