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Finding the Fourth Proportional to 141,755.63, 212,635.01 and 60,691.75

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Solution

The fourth proportional to 141,755.63, 212,635.01 and 60,691.75 is: 91,038.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,755.63 : 212,635.01 = 60,691.75 : x
  2. Step 2: Convert to fraction form
    141,755.63/212,635.01 = 60,691.75/x
  3. Step 3: Cross multiply
    141,755.63x = 212,635.01 × 60,691.75
  4. Step 4: Simplify right side
    141,755.63x = 12,905,190,868.17
  5. Step 5: Solve for x
    x = 12,905,190,868.17/141,755.63
  6. Step 6: Final answer
    x = 91,038.30

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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.