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Finding the Fourth Proportional to 361,232.55, 541,684.80 and 136,518.30

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Solution

The fourth proportional to 361,232.55, 541,684.80 and 136,518.30 is: 204,715.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,232.55 : 541,684.80 = 136,518.30 : x
  2. Step 2: Convert to fraction form
    361,232.55/541,684.80 = 136,518.30/x
  3. Step 3: Cross multiply
    361,232.55x = 541,684.80 × 136,518.30
  4. Step 4: Simplify right side
    361,232.55x = 73,949,888,031.84
  5. Step 5: Solve for x
    x = 73,949,888,031.84/361,232.55
  6. Step 6: Final answer
    x = 204,715.46

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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.