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Finding the Fourth Proportional to 73,809,502.20, 110,713,670.10 and 19,221,982.20

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Solution

The fourth proportional to 73,809,502.20, 110,713,670.10 and 19,221,982.20 is: 28,832,821.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,809,502.20 : 110,713,670.10 = 19,221,982.20 : x
  2. Step 2: Convert to fraction form
    73,809,502.20/110,713,670.10 = 19,221,982.20/x
  3. Step 3: Cross multiply
    73,809,502.20x = 110,713,670.10 × 19,221,982.20
  4. Step 4: Simplify right side
    73,809,502.20x = 2,128,136,195,958,872
  5. Step 5: Solve for x
    x = 2,128,136,195,958,872/73,809,502.20
  6. Step 6: Final answer
    x = 28,832,821.42

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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.