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Finding the Fourth Proportional to 73,384.64, 101,270.72 and 39,850.64

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Solution

The fourth proportional to 73,384.64, 101,270.72 and 39,850.64 is: 54,993.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,384.64 : 101,270.72 = 39,850.64 : x
  2. Step 2: Convert to fraction form
    73,384.64/101,270.72 = 39,850.64/x
  3. Step 3: Cross multiply
    73,384.64x = 101,270.72 × 39,850.64
  4. Step 4: Simplify right side
    73,384.64x = 4,035,703,005.26
  5. Step 5: Solve for x
    x = 4,035,703,005.26/73,384.64
  6. Step 6: Final answer
    x = 54,993.84

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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.