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Finding the Fourth Proportional to 463,642.56, 695,563.71 and 143,787.97

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Solution

The fourth proportional to 463,642.56, 695,563.71 and 143,787.97 is: 215,712.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,642.56 : 695,563.71 = 143,787.97 : x
  2. Step 2: Convert to fraction form
    463,642.56/695,563.71 = 143,787.97/x
  3. Step 3: Cross multiply
    463,642.56x = 695,563.71 × 143,787.97
  4. Step 4: Simplify right side
    463,642.56x = 100,013,694,196.82
  5. Step 5: Solve for x
    x = 100,013,694,196.82/463,642.56
  6. Step 6: Final answer
    x = 215,712.93

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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.