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Finding the Fourth Proportional to 64,270.78, 88,676.24 and 39,102.46

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Solution

The fourth proportional to 64,270.78, 88,676.24 and 39,102.46 is: 53,950.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,270.78 : 88,676.24 = 39,102.46 : x
  2. Step 2: Convert to fraction form
    64,270.78/88,676.24 = 39,102.46/x
  3. Step 3: Cross multiply
    64,270.78x = 88,676.24 × 39,102.46
  4. Step 4: Simplify right side
    64,270.78x = 3,467,459,127.55
  5. Step 5: Solve for x
    x = 3,467,459,127.55/64,270.78
  6. Step 6: Final answer
    x = 53,950.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.