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Finding the Fourth Proportional to 141,930.93, 212,959.17 and 75,354.96

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Solution

The fourth proportional to 141,930.93, 212,959.17 and 75,354.96 is: 113,065.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,930.93 : 212,959.17 = 75,354.96 : x
  2. Step 2: Convert to fraction form
    141,930.93/212,959.17 = 75,354.96/x
  3. Step 3: Cross multiply
    141,930.93x = 212,959.17 × 75,354.96
  4. Step 4: Simplify right side
    141,930.93x = 16,047,529,736.98
  5. Step 5: Solve for x
    x = 16,047,529,736.98/141,930.93
  6. Step 6: Final answer
    x = 113,065.77

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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.