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Finding the Fourth Proportional to 435,402.56, 653,145.12 and 169,183.64

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Solution

The fourth proportional to 435,402.56, 653,145.12 and 169,183.64 is: 253,791.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,402.56 : 653,145.12 = 169,183.64 : x
  2. Step 2: Convert to fraction form
    435,402.56/653,145.12 = 169,183.64/x
  3. Step 3: Cross multiply
    435,402.56x = 653,145.12 × 169,183.64
  4. Step 4: Simplify right side
    435,402.56x = 110,501,470,482.70
  5. Step 5: Solve for x
    x = 110,501,470,482.70/435,402.56
  6. Step 6: Final answer
    x = 253,791.50

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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.