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Finding the Fourth Proportional to 207,871.59, 286,871.18 and 115,998.92

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Solution

The fourth proportional to 207,871.59, 286,871.18 and 115,998.92 is: 160,083.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,871.59 : 286,871.18 = 115,998.92 : x
  2. Step 2: Convert to fraction form
    207,871.59/286,871.18 = 115,998.92/x
  3. Step 3: Cross multiply
    207,871.59x = 286,871.18 × 115,998.92
  4. Step 4: Simplify right side
    207,871.59x = 33,276,745,044.78
  5. Step 5: Solve for x
    x = 33,276,745,044.78/207,871.59
  6. Step 6: Final answer
    x = 160,083.18

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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.