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Finding the Fourth Proportional to 117,144.68, 175,716.99 and 28,398.20

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Solution

The fourth proportional to 117,144.68, 175,716.99 and 28,398.20 is: 42,597.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,144.68 : 175,716.99 = 28,398.20 : x
  2. Step 2: Convert to fraction form
    117,144.68/175,716.99 = 28,398.20/x
  3. Step 3: Cross multiply
    117,144.68x = 175,716.99 × 28,398.20
  4. Step 4: Simplify right side
    117,144.68x = 4,990,045,346.83
  5. Step 5: Solve for x
    x = 4,990,045,346.83/117,144.68
  6. Step 6: Final answer
    x = 42,597.29

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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.