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Finding the Fourth Proportional to 322,052.76, 483,140.50 and 129,942.43

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Solution

The fourth proportional to 322,052.76, 483,140.50 and 129,942.43 is: 194,938.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,052.76 : 483,140.50 = 129,942.43 : x
  2. Step 2: Convert to fraction form
    322,052.76/483,140.50 = 129,942.43/x
  3. Step 3: Cross multiply
    322,052.76x = 483,140.50 × 129,942.43
  4. Step 4: Simplify right side
    322,052.76x = 62,780,449,068.71
  5. Step 5: Solve for x
    x = 62,780,449,068.71/322,052.76
  6. Step 6: Final answer
    x = 194,938.40

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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.