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Finding the Fourth Proportional to 435,861.20, 653,662.20 and 169,468.40

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Solution

The fourth proportional to 435,861.20, 653,662.20 and 169,468.40 is: 254,152.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,861.20 : 653,662.20 = 169,468.40 : x
  2. Step 2: Convert to fraction form
    435,861.20/653,662.20 = 169,468.40/x
  3. Step 3: Cross multiply
    435,861.20x = 653,662.20 × 169,468.40
  4. Step 4: Simplify right side
    435,861.20x = 110,775,087,174.48
  5. Step 5: Solve for x
    x = 110,775,087,174.48/435,861.20
  6. Step 6: Final answer
    x = 254,152.21

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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.