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Finding the Fourth Proportional to 202,326.31, 279,210.36 and 111,682.31

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Solution

The fourth proportional to 202,326.31, 279,210.36 and 111,682.31 is: 154,121.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,326.31 : 279,210.36 = 111,682.31 : x
  2. Step 2: Convert to fraction form
    202,326.31/279,210.36 = 111,682.31/x
  3. Step 3: Cross multiply
    202,326.31x = 279,210.36 × 111,682.31
  4. Step 4: Simplify right side
    202,326.31x = 31,182,857,980.73
  5. Step 5: Solve for x
    x = 31,182,857,980.73/202,326.31
  6. Step 6: Final answer
    x = 154,121.62

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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.