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Finding the Fourth Proportional to 355,885.44, 533,828.15 and 156,207.55

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Solution

The fourth proportional to 355,885.44, 533,828.15 and 156,207.55 is: 234,311.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,885.44 : 533,828.15 = 156,207.55 : x
  2. Step 2: Convert to fraction form
    355,885.44/533,828.15 = 156,207.55/x
  3. Step 3: Cross multiply
    355,885.44x = 533,828.15 × 156,207.55
  4. Step 4: Simplify right side
    355,885.44x = 83,387,987,432.53
  5. Step 5: Solve for x
    x = 83,387,987,432.53/355,885.44
  6. Step 6: Final answer
    x = 234,311.32

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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.