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Finding the Fourth Proportional to 117,345.50, 175,837.08 and 79,245.45

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Solution

The fourth proportional to 117,345.50, 175,837.08 and 79,245.45 is: 118,745.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,345.50 : 175,837.08 = 79,245.45 : x
  2. Step 2: Convert to fraction form
    117,345.50/175,837.08 = 79,245.45/x
  3. Step 3: Cross multiply
    117,345.50x = 175,837.08 × 79,245.45
  4. Step 4: Simplify right side
    117,345.50x = 13,934,288,531.29
  5. Step 5: Solve for x
    x = 13,934,288,531.29/117,345.50
  6. Step 6: Final answer
    x = 118,745.83

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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.