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Finding the Fourth Proportional to 64,868.08, 97,309.04 and 27,431.93

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Solution

The fourth proportional to 64,868.08, 97,309.04 and 27,431.93 is: 41,150.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,868.08 : 97,309.04 = 27,431.93 : x
  2. Step 2: Convert to fraction form
    64,868.08/97,309.04 = 27,431.93/x
  3. Step 3: Cross multiply
    64,868.08x = 97,309.04 × 27,431.93
  4. Step 4: Simplify right side
    64,868.08x = 2,669,375,220.04
  5. Step 5: Solve for x
    x = 2,669,375,220.04/64,868.08
  6. Step 6: Final answer
    x = 41,150.83

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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.