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Finding the Fourth Proportional to 114,570.92, 171,982.02 and 91,029.74

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Solution

The fourth proportional to 114,570.92, 171,982.02 and 91,029.74 is: 136,644.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,570.92 : 171,982.02 = 91,029.74 : x
  2. Step 2: Convert to fraction form
    114,570.92/171,982.02 = 91,029.74/x
  3. Step 3: Cross multiply
    114,570.92x = 171,982.02 × 91,029.74
  4. Step 4: Simplify right side
    114,570.92x = 15,655,478,565.27
  5. Step 5: Solve for x
    x = 15,655,478,565.27/114,570.92
  6. Step 6: Final answer
    x = 136,644.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.