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Finding the Fourth Proportional to 207,942.44, 286,959.50 and 112,448.90

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Solution

The fourth proportional to 207,942.44, 286,959.50 and 112,448.90 is: 155,178.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,942.44 : 286,959.50 = 112,448.90 : x
  2. Step 2: Convert to fraction form
    207,942.44/286,959.50 = 112,448.90/x
  3. Step 3: Cross multiply
    207,942.44x = 286,959.50 × 112,448.90
  4. Step 4: Simplify right side
    207,942.44x = 32,268,280,119.55
  5. Step 5: Solve for x
    x = 32,268,280,119.55/207,942.44
  6. Step 6: Final answer
    x = 155,178.90

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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.