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Finding the Fourth Proportional to 168,405, 232,398.92 and 92,953.52

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Solution

The fourth proportional to 168,405, 232,398.92 and 92,953.52 is: 128,275.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,405 : 232,398.92 = 92,953.52 : x
  2. Step 2: Convert to fraction form
    168,405/232,398.92 = 92,953.52/x
  3. Step 3: Cross multiply
    168,405x = 232,398.92 × 92,953.52
  4. Step 4: Simplify right side
    168,405x = 21,602,297,658.20
  5. Step 5: Solve for x
    x = 21,602,297,658.20/168,405
  6. Step 6: Final answer
    x = 128,275.87

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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.