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Finding the Fourth Proportional to 202,319.40, 303,807.15 and 136,053.30

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Solution

The fourth proportional to 202,319.40, 303,807.15 and 136,053.30 is: 204,300.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,319.40 : 303,807.15 = 136,053.30 : x
  2. Step 2: Convert to fraction form
    202,319.40/303,807.15 = 136,053.30/x
  3. Step 3: Cross multiply
    202,319.40x = 303,807.15 × 136,053.30
  4. Step 4: Simplify right side
    202,319.40x = 41,333,965,321.10
  5. Step 5: Solve for x
    x = 41,333,965,321.10/202,319.40
  6. Step 6: Final answer
    x = 204,300.55

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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.