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Finding the Fourth Proportional to 222,167.02, 306,589.98 and 121,565.02

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Solution

The fourth proportional to 222,167.02, 306,589.98 and 121,565.02 is: 167,759.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,167.02 : 306,589.98 = 121,565.02 : x
  2. Step 2: Convert to fraction form
    222,167.02/306,589.98 = 121,565.02/x
  3. Step 3: Cross multiply
    222,167.02x = 306,589.98 × 121,565.02
  4. Step 4: Simplify right side
    222,167.02x = 37,270,617,050.50
  5. Step 5: Solve for x
    x = 37,270,617,050.50/222,167.02
  6. Step 6: Final answer
    x = 167,759.45

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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.