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Finding the Fourth Proportional to 160,361.34, 221,302.26 and 103,871.04

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Solution

The fourth proportional to 160,361.34, 221,302.26 and 103,871.04 is: 143,344.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,361.34 : 221,302.26 = 103,871.04 : x
  2. Step 2: Convert to fraction form
    160,361.34/221,302.26 = 103,871.04/x
  3. Step 3: Cross multiply
    160,361.34x = 221,302.26 × 103,871.04
  4. Step 4: Simplify right side
    160,361.34x = 22,986,895,900.55
  5. Step 5: Solve for x
    x = 22,986,895,900.55/160,361.34
  6. Step 6: Final answer
    x = 143,344.37

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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.