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Finding the Fourth Proportional to 321,151.84, 443,236.71 and 185,159.17

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Solution

The fourth proportional to 321,151.84, 443,236.71 and 185,159.17 is: 255,546.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,151.84 : 443,236.71 = 185,159.17 : x
  2. Step 2: Convert to fraction form
    321,151.84/443,236.71 = 185,159.17/x
  3. Step 3: Cross multiply
    321,151.84x = 443,236.71 × 185,159.17
  4. Step 4: Simplify right side
    321,151.84x = 82,069,339,050.80
  5. Step 5: Solve for x
    x = 82,069,339,050.80/321,151.84
  6. Step 6: Final answer
    x = 255,546.85

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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.