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Finding the Fourth Proportional to 101,571.72, 152,383.50 and 64,395.96

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Solution

The fourth proportional to 101,571.72, 152,383.50 and 64,395.96 is: 96,610.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,571.72 : 152,383.50 = 64,395.96 : x
  2. Step 2: Convert to fraction form
    101,571.72/152,383.50 = 64,395.96/x
  3. Step 3: Cross multiply
    101,571.72x = 152,383.50 × 64,395.96
  4. Step 4: Simplify right side
    101,571.72x = 9,812,881,770.66
  5. Step 5: Solve for x
    x = 9,812,881,770.66/101,571.72
  6. Step 6: Final answer
    x = 96,610.37

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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.