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Finding the Fourth Proportional to 169,472.27, 233,871.64 and 92,991.86

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Solution

The fourth proportional to 169,472.27, 233,871.64 and 92,991.86 is: 128,328.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,472.27 : 233,871.64 = 92,991.86 : x
  2. Step 2: Convert to fraction form
    169,472.27/233,871.64 = 92,991.86/x
  3. Step 3: Cross multiply
    169,472.27x = 233,871.64 × 92,991.86
  4. Step 4: Simplify right side
    169,472.27x = 21,748,158,804.85
  5. Step 5: Solve for x
    x = 21,748,158,804.85/169,472.27
  6. Step 6: Final answer
    x = 128,328.72

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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.