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Finding the Fourth Proportional to 152,404.70, 228,736.65 and 68,294.30

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Solution

The fourth proportional to 152,404.70, 228,736.65 and 68,294.30 is: 102,499.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,404.70 : 228,736.65 = 68,294.30 : x
  2. Step 2: Convert to fraction form
    152,404.70/228,736.65 = 68,294.30/x
  3. Step 3: Cross multiply
    152,404.70x = 228,736.65 × 68,294.30
  4. Step 4: Simplify right side
    152,404.70x = 15,621,409,396.10
  5. Step 5: Solve for x
    x = 15,621,409,396.10/152,404.70
  6. Step 6: Final answer
    x = 102,499.53

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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.