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Finding the Fourth Proportional to 188,039.41, 259,501.13 and 103,158.97

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Solution

The fourth proportional to 188,039.41, 259,501.13 and 103,158.97 is: 142,363.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,039.41 : 259,501.13 = 103,158.97 : x
  2. Step 2: Convert to fraction form
    188,039.41/259,501.13 = 103,158.97/x
  3. Step 3: Cross multiply
    188,039.41x = 259,501.13 × 103,158.97
  4. Step 4: Simplify right side
    188,039.41x = 26,769,869,284.64
  5. Step 5: Solve for x
    x = 26,769,869,284.64/188,039.41
  6. Step 6: Final answer
    x = 142,363.08

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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.