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Finding the Fourth Proportional to 207,859.47, 286,846.11 and 112,366.14

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Solution

The fourth proportional to 207,859.47, 286,846.11 and 112,366.14 is: 155,065.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,859.47 : 286,846.11 = 112,366.14 : x
  2. Step 2: Convert to fraction form
    207,859.47/286,846.11 = 112,366.14/x
  3. Step 3: Cross multiply
    207,859.47x = 286,846.11 × 112,366.14
  4. Step 4: Simplify right side
    207,859.47x = 32,231,789,079.04
  5. Step 5: Solve for x
    x = 32,231,789,079.04/207,859.47
  6. Step 6: Final answer
    x = 155,065.29

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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.