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Finding the Fourth Proportional to 435,976.90, 653,697.74 and 169,426.16

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Solution

The fourth proportional to 435,976.90, 653,697.74 and 169,426.16 is: 254,035.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,976.90 : 653,697.74 = 169,426.16 : x
  2. Step 2: Convert to fraction form
    435,976.90/653,697.74 = 169,426.16/x
  3. Step 3: Cross multiply
    435,976.90x = 653,697.74 × 169,426.16
  4. Step 4: Simplify right side
    435,976.90x = 110,753,497,888.88
  5. Step 5: Solve for x
    x = 110,753,497,888.88/435,976.90
  6. Step 6: Final answer
    x = 254,035.24

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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.