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Finding the Fourth Proportional to 141,102.89, 211,723.52 and 66,229.13

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Solution

The fourth proportional to 141,102.89, 211,723.52 and 66,229.13 is: 99,376.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,102.89 : 211,723.52 = 66,229.13 : x
  2. Step 2: Convert to fraction form
    141,102.89/211,723.52 = 66,229.13/x
  3. Step 3: Cross multiply
    141,102.89x = 211,723.52 × 66,229.13
  4. Step 4: Simplify right side
    141,102.89x = 14,022,263,140.37
  5. Step 5: Solve for x
    x = 14,022,263,140.37/141,102.89
  6. Step 6: Final answer
    x = 99,376.16

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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.