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Finding the Fourth Proportional to 121,053.69, 181,609.63 and 37,947.69

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Solution

The fourth proportional to 121,053.69, 181,609.63 and 37,947.69 is: 56,930.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,053.69 : 181,609.63 = 37,947.69 : x
  2. Step 2: Convert to fraction form
    121,053.69/181,609.63 = 37,947.69/x
  3. Step 3: Cross multiply
    121,053.69x = 181,609.63 × 37,947.69
  4. Step 4: Simplify right side
    121,053.69x = 6,891,665,845.39
  5. Step 5: Solve for x
    x = 6,891,665,845.39/121,053.69
  6. Step 6: Final answer
    x = 56,930.65

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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.