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Finding the Fourth Proportional to 64,607.68, 96,812.60 and 43,469.42

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Solution

The fourth proportional to 64,607.68, 96,812.60 and 43,469.42 is: 65,137.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,607.68 : 96,812.60 = 43,469.42 : x
  2. Step 2: Convert to fraction form
    64,607.68/96,812.60 = 43,469.42/x
  3. Step 3: Cross multiply
    64,607.68x = 96,812.60 × 43,469.42
  4. Step 4: Simplify right side
    64,607.68x = 4,208,386,869.28
  5. Step 5: Solve for x
    x = 4,208,386,869.28/64,607.68
  6. Step 6: Final answer
    x = 65,137.56

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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.