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Finding the Fourth Proportional to 178,036.49, 267,054.01 and 72,855.41

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Solution

The fourth proportional to 178,036.49, 267,054.01 and 72,855.41 is: 109,282.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,036.49 : 267,054.01 = 72,855.41 : x
  2. Step 2: Convert to fraction form
    178,036.49/267,054.01 = 72,855.41/x
  3. Step 3: Cross multiply
    178,036.49x = 267,054.01 × 72,855.41
  4. Step 4: Simplify right side
    178,036.49x = 19,456,329,390.69
  5. Step 5: Solve for x
    x = 19,456,329,390.69/178,036.49
  6. Step 6: Final answer
    x = 109,282.82

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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.