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Finding the Fourth Proportional to 158,436, 237,675.06 and 74,184.66

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Solution

The fourth proportional to 158,436, 237,675.06 and 74,184.66 is: 111,286.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,436 : 237,675.06 = 74,184.66 : x
  2. Step 2: Convert to fraction form
    158,436/237,675.06 = 74,184.66/x
  3. Step 3: Cross multiply
    158,436x = 237,675.06 × 74,184.66
  4. Step 4: Simplify right side
    158,436x = 17,631,843,516.58
  5. Step 5: Solve for x
    x = 17,631,843,516.58/158,436
  6. Step 6: Final answer
    x = 111,286.85

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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.