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Finding the Fourth Proportional to 64,486.42, 96,698.59 and 50,410.78

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Solution

The fourth proportional to 64,486.42, 96,698.59 and 50,410.78 is: 75,591.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,486.42 : 96,698.59 = 50,410.78 : x
  2. Step 2: Convert to fraction form
    64,486.42/96,698.59 = 50,410.78/x
  3. Step 3: Cross multiply
    64,486.42x = 96,698.59 × 50,410.78
  4. Step 4: Simplify right side
    64,486.42x = 4,874,651,346.80
  5. Step 5: Solve for x
    x = 4,874,651,346.80/64,486.42
  6. Step 6: Final answer
    x = 75,591.91

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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.