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Finding the Fourth Proportional to 64,165.55, 96,009.94 and 40,361.94

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Solution

The fourth proportional to 64,165.55, 96,009.94 and 40,361.94 is: 60,392.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,165.55 : 96,009.94 = 40,361.94 : x
  2. Step 2: Convert to fraction form
    64,165.55/96,009.94 = 40,361.94/x
  3. Step 3: Cross multiply
    64,165.55x = 96,009.94 × 40,361.94
  4. Step 4: Simplify right side
    64,165.55x = 3,875,147,235.87
  5. Step 5: Solve for x
    x = 3,875,147,235.87/64,165.55
  6. Step 6: Final answer
    x = 60,392.96

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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.