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Finding the Fourth Proportional to 90,361.60, 124,625.36 and 63,592.80

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Solution

The fourth proportional to 90,361.60, 124,625.36 and 63,592.80 is: 87,706.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,361.60 : 124,625.36 = 63,592.80 : x
  2. Step 2: Convert to fraction form
    90,361.60/124,625.36 = 63,592.80/x
  3. Step 3: Cross multiply
    90,361.60x = 124,625.36 × 63,592.80
  4. Step 4: Simplify right side
    90,361.60x = 7,925,275,593.41
  5. Step 5: Solve for x
    x = 7,925,275,593.41/90,361.60
  6. Step 6: Final answer
    x = 87,706.23

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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.