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Finding the Fourth Proportional to 141,172.53, 194,833.53 and 80,748.69

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Solution

The fourth proportional to 141,172.53, 194,833.53 and 80,748.69 is: 111,442.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,172.53 : 194,833.53 = 80,748.69 : x
  2. Step 2: Convert to fraction form
    141,172.53/194,833.53 = 80,748.69/x
  3. Step 3: Cross multiply
    141,172.53x = 194,833.53 × 80,748.69
  4. Step 4: Simplify right side
    141,172.53x = 15,732,552,315.58
  5. Step 5: Solve for x
    x = 15,732,552,315.58/141,172.53
  6. Step 6: Final answer
    x = 111,442.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.