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Finding the Fourth Proportional to 355,611.60, 532,672.20 and 166,233.60

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Solution

The fourth proportional to 355,611.60, 532,672.20 and 166,233.60 is: 249,002.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,611.60 : 532,672.20 = 166,233.60 : x
  2. Step 2: Convert to fraction form
    355,611.60/532,672.20 = 166,233.60/x
  3. Step 3: Cross multiply
    355,611.60x = 532,672.20 × 166,233.60
  4. Step 4: Simplify right side
    355,611.60x = 88,548,017,425.92
  5. Step 5: Solve for x
    x = 88,548,017,425.92/355,611.60
  6. Step 6: Final answer
    x = 249,002.05

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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.