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Finding the Fourth Proportional to 64,830.60, 97,318.80 and 50,104.80

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Solution

The fourth proportional to 64,830.60, 97,318.80 and 50,104.80 is: 75,213.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,830.60 : 97,318.80 = 50,104.80 : x
  2. Step 2: Convert to fraction form
    64,830.60/97,318.80 = 50,104.80/x
  3. Step 3: Cross multiply
    64,830.60x = 97,318.80 × 50,104.80
  4. Step 4: Simplify right side
    64,830.60x = 4,876,139,010.24
  5. Step 5: Solve for x
    x = 4,876,139,010.24/64,830.60
  6. Step 6: Final answer
    x = 75,213.54

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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.