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Finding the Fourth Proportional to 254,737.81, 351,167.69 and 178,018.71

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Solution

The fourth proportional to 254,737.81, 351,167.69 and 178,018.71 is: 245,406.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,737.81 : 351,167.69 = 178,018.71 : x
  2. Step 2: Convert to fraction form
    254,737.81/351,167.69 = 178,018.71/x
  3. Step 3: Cross multiply
    254,737.81x = 351,167.69 × 178,018.71
  4. Step 4: Simplify right side
    254,737.81x = 62,514,419,269.61
  5. Step 5: Solve for x
    x = 62,514,419,269.61/254,737.81
  6. Step 6: Final answer
    x = 245,406.91

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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.