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Finding the Fourth Proportional to 431,753.06, 647,579.10 and 116,185.16

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Solution

The fourth proportional to 431,753.06, 647,579.10 and 116,185.16 is: 174,264.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,753.06 : 647,579.10 = 116,185.16 : x
  2. Step 2: Convert to fraction form
    431,753.06/647,579.10 = 116,185.16/x
  3. Step 3: Cross multiply
    431,753.06x = 647,579.10 × 116,185.16
  4. Step 4: Simplify right side
    431,753.06x = 75,239,081,346.16
  5. Step 5: Solve for x
    x = 75,239,081,346.16/431,753.06
  6. Step 6: Final answer
    x = 174,264.15

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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.