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Finding the Fourth Proportional to 267,878.05, 369,694.40 and 147,039.81

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Solution

The fourth proportional to 267,878.05, 369,694.40 and 147,039.81 is: 202,927.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,878.05 : 369,694.40 = 147,039.81 : x
  2. Step 2: Convert to fraction form
    267,878.05/369,694.40 = 147,039.81/x
  3. Step 3: Cross multiply
    267,878.05x = 369,694.40 × 147,039.81
  4. Step 4: Simplify right side
    267,878.05x = 54,359,792,212.51
  5. Step 5: Solve for x
    x = 54,359,792,212.51/267,878.05
  6. Step 6: Final answer
    x = 202,927.39

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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.