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Finding the Fourth Proportional to 163,452.91, 225,552.72 and 91,818.94

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Solution

The fourth proportional to 163,452.91, 225,552.72 and 91,818.94 is: 126,703.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,452.91 : 225,552.72 = 91,818.94 : x
  2. Step 2: Convert to fraction form
    163,452.91/225,552.72 = 91,818.94/x
  3. Step 3: Cross multiply
    163,452.91x = 225,552.72 × 91,818.94
  4. Step 4: Simplify right side
    163,452.91x = 20,710,011,664.52
  5. Step 5: Solve for x
    x = 20,710,011,664.52/163,452.91
  6. Step 6: Final answer
    x = 126,703.23

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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.