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Finding the Fourth Proportional to 104,330.40, 156,380.40 and 57,616.80

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Solution

The fourth proportional to 104,330.40, 156,380.40 and 57,616.80 is: 86,361.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,330.40 : 156,380.40 = 57,616.80 : x
  2. Step 2: Convert to fraction form
    104,330.40/156,380.40 = 57,616.80/x
  3. Step 3: Cross multiply
    104,330.40x = 156,380.40 × 57,616.80
  4. Step 4: Simplify right side
    104,330.40x = 9,010,138,230.72
  5. Step 5: Solve for x
    x = 9,010,138,230.72/104,330.40
  6. Step 6: Final answer
    x = 86,361.58

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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.