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Finding the Fourth Proportional to 141,083.52, 211,656.64 and 66,163.74

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Solution

The fourth proportional to 141,083.52, 211,656.64 and 66,163.74 is: 99,260.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,083.52 : 211,656.64 = 66,163.74 : x
  2. Step 2: Convert to fraction form
    141,083.52/211,656.64 = 66,163.74/x
  3. Step 3: Cross multiply
    141,083.52x = 211,656.64 × 66,163.74
  4. Step 4: Simplify right side
    141,083.52x = 14,003,993,839.95
  5. Step 5: Solve for x
    x = 14,003,993,839.95/141,083.52
  6. Step 6: Final answer
    x = 99,260.31

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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.