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Finding the Fourth Proportional to 356,816.28, 535,244.58 and 157,229.88

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Solution

The fourth proportional to 356,816.28, 535,244.58 and 157,229.88 is: 235,853.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,816.28 : 535,244.58 = 157,229.88 : x
  2. Step 2: Convert to fraction form
    356,816.28/535,244.58 = 157,229.88/x
  3. Step 3: Cross multiply
    356,816.28x = 535,244.58 × 157,229.88
  4. Step 4: Simplify right side
    356,816.28x = 84,156,441,084.05
  5. Step 5: Solve for x
    x = 84,156,441,084.05/356,816.28
  6. Step 6: Final answer
    x = 235,853.70

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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.