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Finding the Fourth Proportional to 64,961.60, 97,515.30 and 50,235.80

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Solution

The fourth proportional to 64,961.60, 97,515.30 and 50,235.80 is: 75,410.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,961.60 : 97,515.30 = 50,235.80 : x
  2. Step 2: Convert to fraction form
    64,961.60/97,515.30 = 50,235.80/x
  3. Step 3: Cross multiply
    64,961.60x = 97,515.30 × 50,235.80
  4. Step 4: Simplify right side
    64,961.60x = 4,898,759,107.74
  5. Step 5: Solve for x
    x = 4,898,759,107.74/64,961.60
  6. Step 6: Final answer
    x = 75,410.07

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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.