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Finding the Fourth Proportional to 325,246.43, 487,916.10 and 100,626.03

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Solution

The fourth proportional to 325,246.43, 487,916.10 and 100,626.03 is: 150,953.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,246.43 : 487,916.10 = 100,626.03 : x
  2. Step 2: Convert to fraction form
    325,246.43/487,916.10 = 100,626.03/x
  3. Step 3: Cross multiply
    325,246.43x = 487,916.10 × 100,626.03
  4. Step 4: Simplify right side
    325,246.43x = 49,097,060,116.08
  5. Step 5: Solve for x
    x = 49,097,060,116.08/325,246.43
  6. Step 6: Final answer
    x = 150,953.42

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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.