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Finding the Fourth Proportional to 181,427.30, 272,140.95 and 92,651.30

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Solution

The fourth proportional to 181,427.30, 272,140.95 and 92,651.30 is: 138,976.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,427.30 : 272,140.95 = 92,651.30 : x
  2. Step 2: Convert to fraction form
    181,427.30/272,140.95 = 92,651.30/x
  3. Step 3: Cross multiply
    181,427.30x = 272,140.95 × 92,651.30
  4. Step 4: Simplify right side
    181,427.30x = 25,214,212,800.74
  5. Step 5: Solve for x
    x = 25,214,212,800.74/181,427.30
  6. Step 6: Final answer
    x = 138,976.95

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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.