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Finding the Fourth Proportional to 168,289.68, 232,240 and 92,838

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Solution

The fourth proportional to 168,289.68, 232,240 and 92,838 is: 128,116.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,289.68 : 232,240 = 92,838 : x
  2. Step 2: Convert to fraction form
    168,289.68/232,240 = 92,838/x
  3. Step 3: Cross multiply
    168,289.68x = 232,240 × 92,838
  4. Step 4: Simplify right side
    168,289.68x = 21,560,697,120
  5. Step 5: Solve for x
    x = 21,560,697,120/168,289.68
  6. Step 6: Final answer
    x = 128,116.57

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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.