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Finding the Fourth Proportional to 435,404.16, 653,147.49 and 169,185.21

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Solution

The fourth proportional to 435,404.16, 653,147.49 and 169,185.21 is: 253,793.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,404.16 : 653,147.49 = 169,185.21 : x
  2. Step 2: Convert to fraction form
    435,404.16/653,147.49 = 169,185.21/x
  3. Step 3: Cross multiply
    435,404.16x = 653,147.49 × 169,185.21
  4. Step 4: Simplify right side
    435,404.16x = 110,502,895,256.62
  5. Step 5: Solve for x
    x = 110,502,895,256.62/435,404.16
  6. Step 6: Final answer
    x = 253,793.84

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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.