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Finding the Fourth Proportional to 202,534.20, 303,218.10 and 123,802.20

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Solution

The fourth proportional to 202,534.20, 303,218.10 and 123,802.20 is: 185,346.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,534.20 : 303,218.10 = 123,802.20 : x
  2. Step 2: Convert to fraction form
    202,534.20/303,218.10 = 123,802.20/x
  3. Step 3: Cross multiply
    202,534.20x = 303,218.10 × 123,802.20
  4. Step 4: Simplify right side
    202,534.20x = 37,539,067,859.82
  5. Step 5: Solve for x
    x = 37,539,067,859.82/202,534.20
  6. Step 6: Final answer
    x = 185,346.81

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1.5x scale

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.