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Finding the Fourth Proportional to 192,469.40, 287,220.28 and 169,146.08

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Solution

The fourth proportional to 192,469.40, 287,220.28 and 169,146.08 is: 252,415.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,469.40 : 287,220.28 = 169,146.08 : x
  2. Step 2: Convert to fraction form
    192,469.40/287,220.28 = 169,146.08/x
  3. Step 3: Cross multiply
    192,469.40x = 287,220.28 × 169,146.08
  4. Step 4: Simplify right side
    192,469.40x = 48,582,184,458.50
  5. Step 5: Solve for x
    x = 48,582,184,458.50/192,469.40
  6. Step 6: Final answer
    x = 252,415.11

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.