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Finding the Fourth Proportional to 168,388.29, 232,359.30 and 92,931.93

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Solution

The fourth proportional to 168,388.29, 232,359.30 and 92,931.93 is: 128,236.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,388.29 : 232,359.30 = 92,931.93 : x
  2. Step 2: Convert to fraction form
    168,388.29/232,359.30 = 92,931.93/x
  3. Step 3: Cross multiply
    168,388.29x = 232,359.30 × 92,931.93
  4. Step 4: Simplify right side
    168,388.29x = 21,593,598,202.45
  5. Step 5: Solve for x
    x = 21,593,598,202.45/168,388.29
  6. Step 6: Final answer
    x = 128,236.94

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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.