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Finding the Fourth Proportional to 218,561.54, 301,628.85 and 132,528.74

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Solution

The fourth proportional to 218,561.54, 301,628.85 and 132,528.74 is: 182,898.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,561.54 : 301,628.85 = 132,528.74 : x
  2. Step 2: Convert to fraction form
    218,561.54/301,628.85 = 132,528.74/x
  3. Step 3: Cross multiply
    218,561.54x = 301,628.85 × 132,528.74
  4. Step 4: Simplify right side
    218,561.54x = 39,974,491,438.15
  5. Step 5: Solve for x
    x = 39,974,491,438.15/218,561.54
  6. Step 6: Final answer
    x = 182,898.10

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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.