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Finding the Fourth Proportional to 178,305.94, 267,696.47 and 103,479.81

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Solution

The fourth proportional to 178,305.94, 267,696.47 and 103,479.81 is: 155,357.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,305.94 : 267,696.47 = 103,479.81 : x
  2. Step 2: Convert to fraction form
    178,305.94/267,696.47 = 103,479.81/x
  3. Step 3: Cross multiply
    178,305.94x = 267,696.47 × 103,479.81
  4. Step 4: Simplify right side
    178,305.94x = 27,701,179,853.27
  5. Step 5: Solve for x
    x = 27,701,179,853.27/178,305.94
  6. Step 6: Final answer
    x = 155,357.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.