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Finding the Fourth Proportional to 355,120.47, 532,468.17 and 165,623.76

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Solution

The fourth proportional to 355,120.47, 532,468.17 and 165,623.76 is: 248,336.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,120.47 : 532,468.17 = 165,623.76 : x
  2. Step 2: Convert to fraction form
    355,120.47/532,468.17 = 165,623.76/x
  3. Step 3: Cross multiply
    355,120.47x = 532,468.17 × 165,623.76
  4. Step 4: Simplify right side
    355,120.47x = 88,189,380,395.72
  5. Step 5: Solve for x
    x = 88,189,380,395.72/355,120.47
  6. Step 6: Final answer
    x = 248,336.52

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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.