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Finding the Fourth Proportional to 71,361.25, 98,433.97 and 45,900.79

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Solution

The fourth proportional to 71,361.25, 98,433.97 and 45,900.79 is: 63,314.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,361.25 : 98,433.97 = 45,900.79 : x
  2. Step 2: Convert to fraction form
    71,361.25/98,433.97 = 45,900.79/x
  3. Step 3: Cross multiply
    71,361.25x = 98,433.97 × 45,900.79
  4. Step 4: Simplify right side
    71,361.25x = 4,518,196,625.00
  5. Step 5: Solve for x
    x = 4,518,196,625.00/71,361.25
  6. Step 6: Final answer
    x = 63,314.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.