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Finding the Fourth Proportional to 435,392.75, 653,338.30 and 169,118.82

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Solution

The fourth proportional to 435,392.75, 653,338.30 and 169,118.82 is: 253,775.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,392.75 : 653,338.30 = 169,118.82 : x
  2. Step 2: Convert to fraction form
    435,392.75/653,338.30 = 169,118.82/x
  3. Step 3: Cross multiply
    435,392.75x = 653,338.30 × 169,118.82
  4. Step 4: Simplify right side
    435,392.75x = 110,491,802,356.81
  5. Step 5: Solve for x
    x = 110,491,802,356.81/435,392.75
  6. Step 6: Final answer
    x = 253,775.02

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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.