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Finding the Fourth Proportional to 86,146.92, 118,865.32 and 50,330.01

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Solution

The fourth proportional to 86,146.92, 118,865.32 and 50,330.01 is: 69,445.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,146.92 : 118,865.32 = 50,330.01 : x
  2. Step 2: Convert to fraction form
    86,146.92/118,865.32 = 50,330.01/x
  3. Step 3: Cross multiply
    86,146.92x = 118,865.32 × 50,330.01
  4. Step 4: Simplify right side
    86,146.92x = 5,982,493,167.24
  5. Step 5: Solve for x
    x = 5,982,493,167.24/86,146.92
  6. Step 6: Final answer
    x = 69,445.24

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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.