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Finding the Fourth Proportional to 141,694.70, 212,541.74 and 97,186.48

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Solution

The fourth proportional to 141,694.70, 212,541.74 and 97,186.48 is: 145,779.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,694.70 : 212,541.74 = 97,186.48 : x
  2. Step 2: Convert to fraction form
    141,694.70/212,541.74 = 97,186.48/x
  3. Step 3: Cross multiply
    141,694.70x = 212,541.74 × 97,186.48
  4. Step 4: Simplify right side
    141,694.70x = 20,656,183,563.68
  5. Step 5: Solve for x
    x = 20,656,183,563.68/141,694.70
  6. Step 6: Final answer
    x = 145,779.51

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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.