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Finding the Fourth Proportional to 234,589.50, 323,734.08 and 127,159.05

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Solution

The fourth proportional to 234,589.50, 323,734.08 and 127,159.05 is: 175,479.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,589.50 : 323,734.08 = 127,159.05 : x
  2. Step 2: Convert to fraction form
    234,589.50/323,734.08 = 127,159.05/x
  3. Step 3: Cross multiply
    234,589.50x = 323,734.08 × 127,159.05
  4. Step 4: Simplify right side
    234,589.50x = 41,165,718,065.42
  5. Step 5: Solve for x
    x = 41,165,718,065.42/234,589.50
  6. Step 6: Final answer
    x = 175,479.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.