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Finding the Fourth Proportional to 208,793.67, 288,136.04 and 113,300.36

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Solution

The fourth proportional to 208,793.67, 288,136.04 and 113,300.36 is: 156,354.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,793.67 : 288,136.04 = 113,300.36 : x
  2. Step 2: Convert to fraction form
    208,793.67/288,136.04 = 113,300.36/x
  3. Step 3: Cross multiply
    208,793.67x = 288,136.04 × 113,300.36
  4. Step 4: Simplify right side
    208,793.67x = 32,645,915,053.79
  5. Step 5: Solve for x
    x = 32,645,915,053.79/208,793.67
  6. Step 6: Final answer
    x = 156,354.91

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1.5x scale

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.