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Finding the Fourth Proportional to 73,400.93, 110,101.33 and 20,810.42

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Solution

The fourth proportional to 73,400.93, 110,101.33 and 20,810.42 is: 31,215.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,400.93 : 110,101.33 = 20,810.42 : x
  2. Step 2: Convert to fraction form
    73,400.93/110,101.33 = 20,810.42/x
  3. Step 3: Cross multiply
    73,400.93x = 110,101.33 × 20,810.42
  4. Step 4: Simplify right side
    73,400.93x = 2,291,254,691.19
  5. Step 5: Solve for x
    x = 2,291,254,691.19/73,400.93
  6. Step 6: Final answer
    x = 31,215.61

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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.