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Finding the Fourth Proportional to 351,677.48, 485,315.43 and 190,532.53

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Solution

The fourth proportional to 351,677.48, 485,315.43 and 190,532.53 is: 262,935.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,677.48 : 485,315.43 = 190,532.53 : x
  2. Step 2: Convert to fraction form
    351,677.48/485,315.43 = 190,532.53/x
  3. Step 3: Cross multiply
    351,677.48x = 485,315.43 × 190,532.53
  4. Step 4: Simplify right side
    351,677.48x = 92,468,376,725.94
  5. Step 5: Solve for x
    x = 92,468,376,725.94/351,677.48
  6. Step 6: Final answer
    x = 262,935.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.