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Finding the Fourth Proportional to 171,375.40, 257,354.70 and 127,052.20

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Solution

The fourth proportional to 171,375.40, 257,354.70 and 127,052.20 is: 190,794.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,375.40 : 257,354.70 = 127,052.20 : x
  2. Step 2: Convert to fraction form
    171,375.40/257,354.70 = 127,052.20/x
  3. Step 3: Cross multiply
    171,375.40x = 257,354.70 × 127,052.20
  4. Step 4: Simplify right side
    171,375.40x = 32,697,480,815.34
  5. Step 5: Solve for x
    x = 32,697,480,815.34/171,375.40
  6. Step 6: Final answer
    x = 190,794.48

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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.