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Finding the Fourth Proportional to 178,495.61, 267,378.91 and 99,651.83

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Solution

The fourth proportional to 178,495.61, 267,378.91 and 99,651.83 is: 149,274.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,495.61 : 267,378.91 = 99,651.83 : x
  2. Step 2: Convert to fraction form
    178,495.61/267,378.91 = 99,651.83/x
  3. Step 3: Cross multiply
    178,495.61x = 267,378.91 × 99,651.83
  4. Step 4: Simplify right side
    178,495.61x = 26,644,796,098.88
  5. Step 5: Solve for x
    x = 26,644,796,098.88/178,495.61
  6. Step 6: Final answer
    x = 149,274.24

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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.