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Finding the Fourth Proportional to 171,623.20, 257,459.10 and 53,282.20

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Solution

The fourth proportional to 171,623.20, 257,459.10 and 53,282.20 is: 79,930.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,623.20 : 257,459.10 = 53,282.20 : x
  2. Step 2: Convert to fraction form
    171,623.20/257,459.10 = 53,282.20/x
  3. Step 3: Cross multiply
    171,623.20x = 257,459.10 × 53,282.20
  4. Step 4: Simplify right side
    171,623.20x = 13,717,987,258.02
  5. Step 5: Solve for x
    x = 13,717,987,258.02/171,623.20
  6. Step 6: Final answer
    x = 79,930.84

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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.