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Finding the Fourth Proportional to 178,686.56, 246,570 and 103,233.44

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Solution

The fourth proportional to 178,686.56, 246,570 and 103,233.44 is: 142,452.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,686.56 : 246,570 = 103,233.44 : x
  2. Step 2: Convert to fraction form
    178,686.56/246,570 = 103,233.44/x
  3. Step 3: Cross multiply
    178,686.56x = 246,570 × 103,233.44
  4. Step 4: Simplify right side
    178,686.56x = 25,454,269,300.80
  5. Step 5: Solve for x
    x = 25,454,269,300.80/178,686.56
  6. Step 6: Final answer
    x = 142,452.06

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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.