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Finding the Fourth Proportional to 73,525, 101,464.62 and 39,991

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Solution

The fourth proportional to 73,525, 101,464.62 and 39,991 is: 55,187.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,525 : 101,464.62 = 39,991 : x
  2. Step 2: Convert to fraction form
    73,525/101,464.62 = 39,991/x
  3. Step 3: Cross multiply
    73,525x = 101,464.62 × 39,991
  4. Step 4: Simplify right side
    73,525x = 4,057,671,618.42
  5. Step 5: Solve for x
    x = 4,057,671,618.42/73,525
  6. Step 6: Final answer
    x = 55,187.65

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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.