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Finding the Fourth Proportional to 119,165.01, 178,747.35 and 30,418.53

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Solution

The fourth proportional to 119,165.01, 178,747.35 and 30,418.53 is: 45,627.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,165.01 : 178,747.35 = 30,418.53 : x
  2. Step 2: Convert to fraction form
    119,165.01/178,747.35 = 30,418.53/x
  3. Step 3: Cross multiply
    119,165.01x = 178,747.35 × 30,418.53
  4. Step 4: Simplify right side
    119,165.01x = 5,437,231,628.40
  5. Step 5: Solve for x
    x = 5,437,231,628.40/119,165.01
  6. Step 6: Final answer
    x = 45,627.75

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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.