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Finding the Fourth Proportional to 121,155.92, 181,770.94 and 62,033.42

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Solution

The fourth proportional to 121,155.92, 181,770.94 and 62,033.42 is: 93,069.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,155.92 : 181,770.94 = 62,033.42 : x
  2. Step 2: Convert to fraction form
    121,155.92/181,770.94 = 62,033.42/x
  3. Step 3: Cross multiply
    121,155.92x = 181,770.94 × 62,033.42
  4. Step 4: Simplify right side
    121,155.92x = 11,275,873,064.81
  5. Step 5: Solve for x
    x = 11,275,873,064.81/121,155.92
  6. Step 6: Final answer
    x = 93,069.11

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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.