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Finding the Fourth Proportional to 141,670.73, 212,505.87 and 97,162.55

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Solution

The fourth proportional to 141,670.73, 212,505.87 and 97,162.55 is: 145,743.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,670.73 : 212,505.87 = 97,162.55 : x
  2. Step 2: Convert to fraction form
    141,670.73/212,505.87 = 97,162.55/x
  3. Step 3: Cross multiply
    141,670.73x = 212,505.87 × 97,162.55
  4. Step 4: Simplify right side
    141,670.73x = 20,647,612,548.42
  5. Step 5: Solve for x
    x = 20,647,612,548.42/141,670.73
  6. Step 6: Final answer
    x = 145,743.67

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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.