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Finding the Fourth Proportional to 73,798.49, 110,698.38 and 21,207.96

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Solution

The fourth proportional to 73,798.49, 110,698.38 and 21,207.96 is: 31,812.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,798.49 : 110,698.38 = 21,207.96 : x
  2. Step 2: Convert to fraction form
    73,798.49/110,698.38 = 21,207.96/x
  3. Step 3: Cross multiply
    73,798.49x = 110,698.38 × 21,207.96
  4. Step 4: Simplify right side
    73,798.49x = 2,347,686,815.10
  5. Step 5: Solve for x
    x = 2,347,686,815.10/73,798.49
  6. Step 6: Final answer
    x = 31,812.12

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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.