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Finding the Fourth Proportional to 355,616.28, 533,145.78 and 178,034.04

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Solution

The fourth proportional to 355,616.28, 533,145.78 and 178,034.04 is: 266,911.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,616.28 : 533,145.78 = 178,034.04 : x
  2. Step 2: Convert to fraction form
    355,616.28/533,145.78 = 178,034.04/x
  3. Step 3: Cross multiply
    355,616.28x = 533,145.78 × 178,034.04
  4. Step 4: Simplify right side
    355,616.28x = 94,918,097,122.35
  5. Step 5: Solve for x
    x = 94,918,097,122.35/355,616.28
  6. Step 6: Final answer
    x = 266,911.56

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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.