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Finding the Fourth Proportional to 202,398.95, 279,305.23 and 111,752.97

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Solution

The fourth proportional to 202,398.95, 279,305.23 and 111,752.97 is: 154,216.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,398.95 : 279,305.23 = 111,752.97 : x
  2. Step 2: Convert to fraction form
    202,398.95/279,305.23 = 111,752.97/x
  3. Step 3: Cross multiply
    202,398.95x = 279,305.23 × 111,752.97
  4. Step 4: Simplify right side
    202,398.95x = 31,213,188,989.03
  5. Step 5: Solve for x
    x = 31,213,188,989.03/202,398.95
  6. Step 6: Final answer
    x = 154,216.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.