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Finding the Fourth Proportional to 175,028.20, 261,886.20 and 115,979.20

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Solution

The fourth proportional to 175,028.20, 261,886.20 and 115,979.20 is: 173,534.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,028.20 : 261,886.20 = 115,979.20 : x
  2. Step 2: Convert to fraction form
    175,028.20/261,886.20 = 115,979.20/x
  3. Step 3: Cross multiply
    175,028.20x = 261,886.20 × 115,979.20
  4. Step 4: Simplify right side
    175,028.20x = 30,373,351,967.04
  5. Step 5: Solve for x
    x = 30,373,351,967.04/175,028.20
  6. Step 6: Final answer
    x = 173,534.05

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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.