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Finding the Fourth Proportional to 121,331.95, 181,997.93 and 121,331.95

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Solution

The fourth proportional to 121,331.95, 181,997.93 and 121,331.95 is: 181,997.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,331.95 : 181,997.93 = 121,331.95 : x
  2. Step 2: Convert to fraction form
    121,331.95/181,997.93 = 121,331.95/x
  3. Step 3: Cross multiply
    121,331.95x = 181,997.93 × 121,331.95
  4. Step 4: Simplify right side
    121,331.95x = 22,082,163,742.86
  5. Step 5: Solve for x
    x = 22,082,163,742.86/121,331.95
  6. Step 6: Final answer
    x = 181,997.93

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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.