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Finding the Fourth Proportional to 296,861.32, 445,404.06 and 178,615.70

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Solution

The fourth proportional to 296,861.32, 445,404.06 and 178,615.70 is: 267,990.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,861.32 : 445,404.06 = 178,615.70 : x
  2. Step 2: Convert to fraction form
    296,861.32/445,404.06 = 178,615.70/x
  3. Step 3: Cross multiply
    296,861.32x = 445,404.06 × 178,615.70
  4. Step 4: Simplify right side
    296,861.32x = 79,556,154,839.64
  5. Step 5: Solve for x
    x = 79,556,154,839.64/296,861.32
  6. Step 6: Final answer
    x = 267,990.98

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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.