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Finding the Fourth Proportional to 162,828.80, 244,243.20 and 74,255.30

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Solution

The fourth proportional to 162,828.80, 244,243.20 and 74,255.30 is: 111,382.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,828.80 : 244,243.20 = 74,255.30 : x
  2. Step 2: Convert to fraction form
    162,828.80/244,243.20 = 74,255.30/x
  3. Step 3: Cross multiply
    162,828.80x = 244,243.20 × 74,255.30
  4. Step 4: Simplify right side
    162,828.80x = 18,136,352,088.96
  5. Step 5: Solve for x
    x = 18,136,352,088.96/162,828.80
  6. Step 6: Final answer
    x = 111,382.95

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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.