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Finding the Fourth Proportional to 355,658.28, 533,208.78 and 178,076.04

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Solution

The fourth proportional to 355,658.28, 533,208.78 and 178,076.04 is: 266,974.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,658.28 : 533,208.78 = 178,076.04 : x
  2. Step 2: Convert to fraction form
    355,658.28/533,208.78 = 178,076.04/x
  3. Step 3: Cross multiply
    355,658.28x = 533,208.78 × 178,076.04
  4. Step 4: Simplify right side
    355,658.28x = 94,951,708,035.63
  5. Step 5: Solve for x
    x = 94,951,708,035.63/355,658.28
  6. Step 6: Final answer
    x = 266,974.55

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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.