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Finding the Fourth Proportional to 145,596.87, 200,925.11 and 81,067.01

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Solution

The fourth proportional to 145,596.87, 200,925.11 and 81,067.01 is: 111,873.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,596.87 : 200,925.11 = 81,067.01 : x
  2. Step 2: Convert to fraction form
    145,596.87/200,925.11 = 81,067.01/x
  3. Step 3: Cross multiply
    145,596.87x = 200,925.11 × 81,067.01
  4. Step 4: Simplify right side
    145,596.87x = 16,288,397,099.66
  5. Step 5: Solve for x
    x = 16,288,397,099.66/145,596.87
  6. Step 6: Final answer
    x = 111,873.26

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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.