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Finding the Fourth Proportional to 235,491, 324,986.13 and 134,908.44

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Solution

The fourth proportional to 235,491, 324,986.13 and 134,908.44 is: 186,178.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,491 : 324,986.13 = 134,908.44 : x
  2. Step 2: Convert to fraction form
    235,491/324,986.13 = 134,908.44/x
  3. Step 3: Cross multiply
    235,491x = 324,986.13 × 134,908.44
  4. Step 4: Simplify right side
    235,491x = 43,843,371,819.94
  5. Step 5: Solve for x
    x = 43,843,371,819.94/235,491
  6. Step 6: Final answer
    x = 186,178.55

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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.