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Finding the Fourth Proportional to 437,956.28, 656,934.42 and 105,532.28

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Solution

The fourth proportional to 437,956.28, 656,934.42 and 105,532.28 is: 158,298.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,956.28 : 656,934.42 = 105,532.28 : x
  2. Step 2: Convert to fraction form
    437,956.28/656,934.42 = 105,532.28/x
  3. Step 3: Cross multiply
    437,956.28x = 656,934.42 × 105,532.28
  4. Step 4: Simplify right side
    437,956.28x = 69,327,787,153.08
  5. Step 5: Solve for x
    x = 69,327,787,153.08/437,956.28
  6. Step 6: Final answer
    x = 158,298.42

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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.