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Finding the Fourth Proportional to 354,522.28, 531,418.62 and 154,805.32

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Solution

The fourth proportional to 354,522.28, 531,418.62 and 154,805.32 is: 232,048.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,522.28 : 531,418.62 = 154,805.32 : x
  2. Step 2: Convert to fraction form
    354,522.28/531,418.62 = 154,805.32/x
  3. Step 3: Cross multiply
    354,522.28x = 531,418.62 × 154,805.32
  4. Step 4: Simplify right side
    354,522.28x = 82,266,429,523.06
  5. Step 5: Solve for x
    x = 82,266,429,523.06/354,522.28
  6. Step 6: Final answer
    x = 232,048.69

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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.