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Finding the Fourth Proportional to 270,989.33, 374,017.62 and 156,342.03

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Solution

The fourth proportional to 270,989.33, 374,017.62 and 156,342.03 is: 215,782.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,989.33 : 374,017.62 = 156,342.03 : x
  2. Step 2: Convert to fraction form
    270,989.33/374,017.62 = 156,342.03/x
  3. Step 3: Cross multiply
    270,989.33x = 374,017.62 × 156,342.03
  4. Step 4: Simplify right side
    270,989.33x = 58,474,673,966.57
  5. Step 5: Solve for x
    x = 58,474,673,966.57/270,989.33
  6. Step 6: Final answer
    x = 215,782.20

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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.