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Finding the Fourth Proportional to 183,943.41, 253,838.51 and 103,369.78

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Solution

The fourth proportional to 183,943.41, 253,838.51 and 103,369.78 is: 142,648.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,943.41 : 253,838.51 = 103,369.78 : x
  2. Step 2: Convert to fraction form
    183,943.41/253,838.51 = 103,369.78/x
  3. Step 3: Cross multiply
    183,943.41x = 253,838.51 × 103,369.78
  4. Step 4: Simplify right side
    183,943.41x = 26,239,229,665.04
  5. Step 5: Solve for x
    x = 26,239,229,665.04/183,943.41
  6. Step 6: Final answer
    x = 142,648.38

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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.