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Finding the Fourth Proportional to 141,458.46, 212,187.69 and 67,361.82

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Solution

The fourth proportional to 141,458.46, 212,187.69 and 67,361.82 is: 101,042.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,458.46 : 212,187.69 = 67,361.82 : x
  2. Step 2: Convert to fraction form
    141,458.46/212,187.69 = 67,361.82/x
  3. Step 3: Cross multiply
    141,458.46x = 212,187.69 × 67,361.82
  4. Step 4: Simplify right side
    141,458.46x = 14,293,348,980.00
  5. Step 5: Solve for x
    x = 14,293,348,980.00/141,458.46
  6. Step 6: Final answer
    x = 101,042.73

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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.