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Finding the Fourth Proportional to 111,878.35, 167,891.35 and 52,730.93

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Solution

The fourth proportional to 111,878.35, 167,891.35 and 52,730.93 is: 79,131.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,878.35 : 167,891.35 = 52,730.93 : x
  2. Step 2: Convert to fraction form
    111,878.35/167,891.35 = 52,730.93/x
  3. Step 3: Cross multiply
    111,878.35x = 167,891.35 × 52,730.93
  4. Step 4: Simplify right side
    111,878.35x = 8,853,067,024.46
  5. Step 5: Solve for x
    x = 8,853,067,024.46/111,878.35
  6. Step 6: Final answer
    x = 79,131.19

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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.