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Finding the Fourth Proportional to 202,555.66, 279,502.98 and 111,906.22

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Solution

The fourth proportional to 202,555.66, 279,502.98 and 111,906.22 is: 154,417.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,555.66 : 279,502.98 = 111,906.22 : x
  2. Step 2: Convert to fraction form
    202,555.66/279,502.98 = 111,906.22/x
  3. Step 3: Cross multiply
    202,555.66x = 279,502.98 × 111,906.22
  4. Step 4: Simplify right side
    202,555.66x = 31,278,121,970.54
  5. Step 5: Solve for x
    x = 31,278,121,970.54/202,555.66
  6. Step 6: Final answer
    x = 154,417.42

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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.