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Finding the Fourth Proportional to 123,656.16, 185,481.20 and 34,908.40

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Solution

The fourth proportional to 123,656.16, 185,481.20 and 34,908.40 is: 52,361.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,656.16 : 185,481.20 = 34,908.40 : x
  2. Step 2: Convert to fraction form
    123,656.16/185,481.20 = 34,908.40/x
  3. Step 3: Cross multiply
    123,656.16x = 185,481.20 × 34,908.40
  4. Step 4: Simplify right side
    123,656.16x = 6,474,851,922.08
  5. Step 5: Solve for x
    x = 6,474,851,922.08/123,656.16
  6. Step 6: Final answer
    x = 52,361.74

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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.