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Finding the Fourth Proportional to 104,625.49, 156,936.86 and 25,740.40

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Solution

The fourth proportional to 104,625.49, 156,936.86 and 25,740.40 is: 38,610.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,625.49 : 156,936.86 = 25,740.40 : x
  2. Step 2: Convert to fraction form
    104,625.49/156,936.86 = 25,740.40/x
  3. Step 3: Cross multiply
    104,625.49x = 156,936.86 × 25,740.40
  4. Step 4: Simplify right side
    104,625.49x = 4,039,617,551.14
  5. Step 5: Solve for x
    x = 4,039,617,551.14/104,625.49
  6. Step 6: Final answer
    x = 38,610.26

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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.