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Finding the Fourth Proportional to 496,571.31, 744,863.90 and 141,585.47

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Solution

The fourth proportional to 496,571.31, 744,863.90 and 141,585.47 is: 212,380.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,571.31 : 744,863.90 = 141,585.47 : x
  2. Step 2: Convert to fraction form
    496,571.31/744,863.90 = 141,585.47/x
  3. Step 3: Cross multiply
    496,571.31x = 744,863.90 × 141,585.47
  4. Step 4: Simplify right side
    496,571.31x = 105,461,900,935.29
  5. Step 5: Solve for x
    x = 105,461,900,935.29/496,571.31
  6. Step 6: Final answer
    x = 212,380.17

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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.