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Finding the Fourth Proportional to 143,798.36, 198,800.46 and 107,926.10

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Solution

The fourth proportional to 143,798.36, 198,800.46 and 107,926.10 is: 149,207.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,798.36 : 198,800.46 = 107,926.10 : x
  2. Step 2: Convert to fraction form
    143,798.36/198,800.46 = 107,926.10/x
  3. Step 3: Cross multiply
    143,798.36x = 198,800.46 × 107,926.10
  4. Step 4: Simplify right side
    143,798.36x = 21,455,757,973.69
  5. Step 5: Solve for x
    x = 21,455,757,973.69/143,798.36
  6. Step 6: Final answer
    x = 149,207.25

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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.