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Finding the Fourth Proportional to 95,070, 131,231.16 and 55,326

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Solution

The fourth proportional to 95,070, 131,231.16 and 55,326 is: 76,369.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,070 : 131,231.16 = 55,326 : x
  2. Step 2: Convert to fraction form
    95,070/131,231.16 = 55,326/x
  3. Step 3: Cross multiply
    95,070x = 131,231.16 × 55,326
  4. Step 4: Simplify right side
    95,070x = 7,260,495,158.16
  5. Step 5: Solve for x
    x = 7,260,495,158.16/95,070
  6. Step 6: Final answer
    x = 76,369.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.