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Finding the Fourth Proportional to 211,414.80, 317,899.80 and 177,200.40

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Solution

The fourth proportional to 211,414.80, 317,899.80 and 177,200.40 is: 266,452.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,414.80 : 317,899.80 = 177,200.40 : x
  2. Step 2: Convert to fraction form
    211,414.80/317,899.80 = 177,200.40/x
  3. Step 3: Cross multiply
    211,414.80x = 317,899.80 × 177,200.40
  4. Step 4: Simplify right side
    211,414.80x = 56,331,971,719.92
  5. Step 5: Solve for x
    x = 56,331,971,719.92/211,414.80
  6. Step 6: Final answer
    x = 266,452.36

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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.