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Finding the Fourth Proportional to 170,680.34, 256,020.64 and 58,361.41

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Solution

The fourth proportional to 170,680.34, 256,020.64 and 58,361.41 is: 87,542.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,680.34 : 256,020.64 = 58,361.41 : x
  2. Step 2: Convert to fraction form
    170,680.34/256,020.64 = 58,361.41/x
  3. Step 3: Cross multiply
    170,680.34x = 256,020.64 × 58,361.41
  4. Step 4: Simplify right side
    170,680.34x = 14,941,724,259.40
  5. Step 5: Solve for x
    x = 14,941,724,259.40/170,680.34
  6. Step 6: Final answer
    x = 87,542.15

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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.