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Finding the Fourth Proportional to 109,021.98, 150,459.21 and 63,097.14

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Solution

The fourth proportional to 109,021.98, 150,459.21 and 63,097.14 is: 87,079.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,021.98 : 150,459.21 = 63,097.14 : x
  2. Step 2: Convert to fraction form
    109,021.98/150,459.21 = 63,097.14/x
  3. Step 3: Cross multiply
    109,021.98x = 150,459.21 × 63,097.14
  4. Step 4: Simplify right side
    109,021.98x = 9,493,545,837.66
  5. Step 5: Solve for x
    x = 9,493,545,837.66/109,021.98
  6. Step 6: Final answer
    x = 87,079.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.