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Finding the Fourth Proportional to 251,142.30, 376,774.20 and 73,655.10

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Solution

The fourth proportional to 251,142.30, 376,774.20 and 73,655.10 is: 110,500.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,142.30 : 376,774.20 = 73,655.10 : x
  2. Step 2: Convert to fraction form
    251,142.30/376,774.20 = 73,655.10/x
  3. Step 3: Cross multiply
    251,142.30x = 376,774.20 × 73,655.10
  4. Step 4: Simplify right side
    251,142.30x = 27,751,341,378.42
  5. Step 5: Solve for x
    x = 27,751,341,378.42/251,142.30
  6. Step 6: Final answer
    x = 110,500.47

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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.