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Finding the Fourth Proportional to 263,203.68, 363,053.86 and 172,565.52

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Solution

The fourth proportional to 263,203.68, 363,053.86 and 172,565.52 is: 238,030.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,203.68 : 363,053.86 = 172,565.52 : x
  2. Step 2: Convert to fraction form
    263,203.68/363,053.86 = 172,565.52/x
  3. Step 3: Cross multiply
    263,203.68x = 363,053.86 × 172,565.52
  4. Step 4: Simplify right side
    263,203.68x = 62,650,578,138.91
  5. Step 5: Solve for x
    x = 62,650,578,138.91/263,203.68
  6. Step 6: Final answer
    x = 238,030.78

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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.