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Finding the Fourth Proportional to 436,975.20, 655,657.20 and 156,693.60

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Solution

The fourth proportional to 436,975.20, 655,657.20 and 156,693.60 is: 235,110.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,975.20 : 655,657.20 = 156,693.60 : x
  2. Step 2: Convert to fraction form
    436,975.20/655,657.20 = 156,693.60/x
  3. Step 3: Cross multiply
    436,975.20x = 655,657.20 × 156,693.60
  4. Step 4: Simplify right side
    436,975.20x = 102,737,287,033.92
  5. Step 5: Solve for x
    x = 102,737,287,033.92/436,975.20
  6. Step 6: Final answer
    x = 235,110.11

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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.