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Finding the Fourth Proportional to 70,603.60, 105,905.44 and 44,326.80

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Solution

The fourth proportional to 70,603.60, 105,905.44 and 44,326.80 is: 66,490.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,603.60 : 105,905.44 = 44,326.80 : x
  2. Step 2: Convert to fraction form
    70,603.60/105,905.44 = 44,326.80/x
  3. Step 3: Cross multiply
    70,603.60x = 105,905.44 × 44,326.80
  4. Step 4: Simplify right side
    70,603.60x = 4,694,449,257.79
  5. Step 5: Solve for x
    x = 4,694,449,257.79/70,603.60
  6. Step 6: Final answer
    x = 66,490.23

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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.