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Finding the Fourth Proportional to 271,712.60, 407,568.90 and 166,590.80

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Solution

The fourth proportional to 271,712.60, 407,568.90 and 166,590.80 is: 249,886.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,712.60 : 407,568.90 = 166,590.80 : x
  2. Step 2: Convert to fraction form
    271,712.60/407,568.90 = 166,590.80/x
  3. Step 3: Cross multiply
    271,712.60x = 407,568.90 × 166,590.80
  4. Step 4: Simplify right side
    271,712.60x = 67,897,229,106.12
  5. Step 5: Solve for x
    x = 67,897,229,106.12/271,712.60
  6. Step 6: Final answer
    x = 249,886.20

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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.