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Finding the Fourth Proportional to 221,713.53, 332,528.79 and 71,955.12

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Solution

The fourth proportional to 221,713.53, 332,528.79 and 71,955.12 is: 107,919.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,713.53 : 332,528.79 = 71,955.12 : x
  2. Step 2: Convert to fraction form
    221,713.53/332,528.79 = 71,955.12/x
  3. Step 3: Cross multiply
    221,713.53x = 332,528.79 × 71,955.12
  4. Step 4: Simplify right side
    221,713.53x = 23,927,148,987.90
  5. Step 5: Solve for x
    x = 23,927,148,987.90/221,713.53
  6. Step 6: Final answer
    x = 107,919.21

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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.