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Finding the Fourth Proportional to 167,813.20, 251,914.20 and 101,328.40

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Solution

The fourth proportional to 167,813.20, 251,914.20 and 101,328.40 is: 152,109.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,813.20 : 251,914.20 = 101,328.40 : x
  2. Step 2: Convert to fraction form
    167,813.20/251,914.20 = 101,328.40/x
  3. Step 3: Cross multiply
    167,813.20x = 251,914.20 × 101,328.40
  4. Step 4: Simplify right side
    167,813.20x = 25,526,062,823.28
  5. Step 5: Solve for x
    x = 25,526,062,823.28/167,813.20
  6. Step 6: Final answer
    x = 152,109.98

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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.