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Finding the Fourth Proportional to 267,678.71, 369,256.69 and 158,719.63

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Solution

The fourth proportional to 267,678.71, 369,256.69 and 158,719.63 is: 218,950.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,678.71 : 369,256.69 = 158,719.63 : x
  2. Step 2: Convert to fraction form
    267,678.71/369,256.69 = 158,719.63/x
  3. Step 3: Cross multiply
    267,678.71x = 369,256.69 × 158,719.63
  4. Step 4: Simplify right side
    267,678.71x = 58,608,282,571.94
  5. Step 5: Solve for x
    x = 58,608,282,571.94/267,678.71
  6. Step 6: Final answer
    x = 218,950.11

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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.