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Finding the Fourth Proportional to 123,405.42, 185,108.15 and 29,911.17

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Solution

The fourth proportional to 123,405.42, 185,108.15 and 29,911.17 is: 44,866.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,405.42 : 185,108.15 = 29,911.17 : x
  2. Step 2: Convert to fraction form
    123,405.42/185,108.15 = 29,911.17/x
  3. Step 3: Cross multiply
    123,405.42x = 185,108.15 × 29,911.17
  4. Step 4: Simplify right side
    123,405.42x = 5,536,801,193.48
  5. Step 5: Solve for x
    x = 5,536,801,193.48/123,405.42
  6. Step 6: Final answer
    x = 44,866.76

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1.5x scale

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.