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Finding the Fourth Proportional to 156,656.80, 234,986.40 and 44,340.64

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Solution

The fourth proportional to 156,656.80, 234,986.40 and 44,340.64 is: 66,511.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,656.80 : 234,986.40 = 44,340.64 : x
  2. Step 2: Convert to fraction form
    156,656.80/234,986.40 = 44,340.64/x
  3. Step 3: Cross multiply
    156,656.80x = 234,986.40 × 44,340.64
  4. Step 4: Simplify right side
    156,656.80x = 10,419,447,367.30
  5. Step 5: Solve for x
    x = 10,419,447,367.30/156,656.80
  6. Step 6: Final answer
    x = 66,511.30

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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.