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Finding the Fourth Proportional to 204,751.80, 307,127.70 and 169,322.40

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Solution

The fourth proportional to 204,751.80, 307,127.70 and 169,322.40 is: 253,983.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,751.80 : 307,127.70 = 169,322.40 : x
  2. Step 2: Convert to fraction form
    204,751.80/307,127.70 = 169,322.40/x
  3. Step 3: Cross multiply
    204,751.80x = 307,127.70 × 169,322.40
  4. Step 4: Simplify right side
    204,751.80x = 52,003,599,270.48
  5. Step 5: Solve for x
    x = 52,003,599,270.48/204,751.80
  6. Step 6: Final answer
    x = 253,983.60

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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.