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Finding the Fourth Proportional to 69,847.88, 96,433.64 and 48,619.40

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Solution

The fourth proportional to 69,847.88, 96,433.64 and 48,619.40 is: 67,125.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,847.88 : 96,433.64 = 48,619.40 : x
  2. Step 2: Convert to fraction form
    69,847.88/96,433.64 = 48,619.40/x
  3. Step 3: Cross multiply
    69,847.88x = 96,433.64 × 48,619.40
  4. Step 4: Simplify right side
    69,847.88x = 4,688,545,716.62
  5. Step 5: Solve for x
    x = 4,688,545,716.62/69,847.88
  6. Step 6: Final answer
    x = 67,125.10

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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.