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Finding the Fourth Proportional to 114,356.80, 171,632.40 and 92,195.20

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Solution

The fourth proportional to 114,356.80, 171,632.40 and 92,195.20 is: 138,371.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,356.80 : 171,632.40 = 92,195.20 : x
  2. Step 2: Convert to fraction form
    114,356.80/171,632.40 = 92,195.20/x
  3. Step 3: Cross multiply
    114,356.80x = 171,632.40 × 92,195.20
  4. Step 4: Simplify right side
    114,356.80x = 15,823,683,444.48
  5. Step 5: Solve for x
    x = 15,823,683,444.48/114,356.80
  6. Step 6: Final answer
    x = 138,371.16

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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.