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Finding the Fourth Proportional to 109,462.99, 151,058.70 and 61,716.01

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Solution

The fourth proportional to 109,462.99, 151,058.70 and 61,716.01 is: 85,167.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,462.99 : 151,058.70 = 61,716.01 : x
  2. Step 2: Convert to fraction form
    109,462.99/151,058.70 = 61,716.01/x
  3. Step 3: Cross multiply
    109,462.99x = 151,058.70 × 61,716.01
  4. Step 4: Simplify right side
    109,462.99x = 9,322,740,239.79
  5. Step 5: Solve for x
    x = 9,322,740,239.79/109,462.99
  6. Step 6: Final answer
    x = 85,167.97

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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.