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Finding the Fourth Proportional to 121,245.66, 181,904.49 and 62,122.86

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Solution

The fourth proportional to 121,245.66, 181,904.49 and 62,122.86 is: 93,202.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,245.66 : 181,904.49 = 62,122.86 : x
  2. Step 2: Convert to fraction form
    121,245.66/181,904.49 = 62,122.86/x
  3. Step 3: Cross multiply
    121,245.66x = 181,904.49 × 62,122.86
  4. Step 4: Simplify right side
    121,245.66x = 11,300,427,165.64
  5. Step 5: Solve for x
    x = 11,300,427,165.64/121,245.66
  6. Step 6: Final answer
    x = 93,202.74

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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.