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Finding the Fourth Proportional to 207,958.88, 286,983.27 and 112,465.55

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Solution

The fourth proportional to 207,958.88, 286,983.27 and 112,465.55 is: 155,202.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,958.88 : 286,983.27 = 112,465.55 : x
  2. Step 2: Convert to fraction form
    207,958.88/286,983.27 = 112,465.55/x
  3. Step 3: Cross multiply
    207,958.88x = 286,983.27 × 112,465.55
  4. Step 4: Simplify right side
    207,958.88x = 32,275,732,018.81
  5. Step 5: Solve for x
    x = 32,275,732,018.81/207,958.88
  6. Step 6: Final answer
    x = 155,202.47

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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.