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Finding the Fourth Proportional to 351,061.38, 484,463.25 and 189,916.05

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Solution

The fourth proportional to 351,061.38, 484,463.25 and 189,916.05 is: 262,083.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,061.38 : 484,463.25 = 189,916.05 : x
  2. Step 2: Convert to fraction form
    351,061.38/484,463.25 = 189,916.05/x
  3. Step 3: Cross multiply
    351,061.38x = 484,463.25 × 189,916.05
  4. Step 4: Simplify right side
    351,061.38x = 92,007,346,810.16
  5. Step 5: Solve for x
    x = 92,007,346,810.16/351,061.38
  6. Step 6: Final answer
    x = 262,083.36

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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.