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Finding the Fourth Proportional to 207,895.80, 311,843.70 and 175,236.60

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Solution

The fourth proportional to 207,895.80, 311,843.70 and 175,236.60 is: 262,854.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,895.80 : 311,843.70 = 175,236.60 : x
  2. Step 2: Convert to fraction form
    207,895.80/311,843.70 = 175,236.60/x
  3. Step 3: Cross multiply
    207,895.80x = 311,843.70 × 175,236.60
  4. Step 4: Simplify right side
    207,895.80x = 54,646,429,719.42
  5. Step 5: Solve for x
    x = 54,646,429,719.42/207,895.80
  6. Step 6: Final answer
    x = 262,854.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.