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Finding the Fourth Proportional to 73,135.51, 109,703.28 and 26,388.37

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Solution

The fourth proportional to 73,135.51, 109,703.28 and 26,388.37 is: 39,582.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,135.51 : 109,703.28 = 26,388.37 : x
  2. Step 2: Convert to fraction form
    73,135.51/109,703.28 = 26,388.37/x
  3. Step 3: Cross multiply
    73,135.51x = 109,703.28 × 26,388.37
  4. Step 4: Simplify right side
    73,135.51x = 2,894,890,742.85
  5. Step 5: Solve for x
    x = 2,894,890,742.85/73,135.51
  6. Step 6: Final answer
    x = 39,582.56

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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.