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Finding the Fourth Proportional to 73,404.52, 110,106.75 and 20,814.46

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Solution

The fourth proportional to 73,404.52, 110,106.75 and 20,814.46 is: 31,221.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,404.52 : 110,106.75 = 20,814.46 : x
  2. Step 2: Convert to fraction form
    73,404.52/110,106.75 = 20,814.46/x
  3. Step 3: Cross multiply
    73,404.52x = 110,106.75 × 20,814.46
  4. Step 4: Simplify right side
    73,404.52x = 2,291,812,543.61
  5. Step 5: Solve for x
    x = 2,291,812,543.61/73,404.52
  6. Step 6: Final answer
    x = 31,221.68

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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.