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Finding the Fourth Proportional to 361,574.40, 542,264.40 and 151,168.80

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Solution

The fourth proportional to 361,574.40, 542,264.40 and 151,168.80 is: 226,712.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,574.40 : 542,264.40 = 151,168.80 : x
  2. Step 2: Convert to fraction form
    361,574.40/542,264.40 = 151,168.80/x
  3. Step 3: Cross multiply
    361,574.40x = 542,264.40 × 151,168.80
  4. Step 4: Simplify right side
    361,574.40x = 81,973,458,630.72
  5. Step 5: Solve for x
    x = 81,973,458,630.72/361,574.40
  6. Step 6: Final answer
    x = 226,712.56

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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.