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Finding the Fourth Proportional to 272,034.10, 408,051.15 and 216,046.90

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Solution

The fourth proportional to 272,034.10, 408,051.15 and 216,046.90 is: 324,070.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,034.10 : 408,051.15 = 216,046.90 : x
  2. Step 2: Convert to fraction form
    272,034.10/408,051.15 = 216,046.90/x
  3. Step 3: Cross multiply
    272,034.10x = 408,051.15 × 216,046.90
  4. Step 4: Simplify right side
    272,034.10x = 88,158,185,998.94
  5. Step 5: Solve for x
    x = 88,158,185,998.94/272,034.10
  6. Step 6: Final answer
    x = 324,070.35

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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.