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Finding the Fourth Proportional to 70,605.60, 105,908.44 and 44,328.80

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Solution

The fourth proportional to 70,605.60, 105,908.44 and 44,328.80 is: 66,493.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,605.60 : 105,908.44 = 44,328.80 : x
  2. Step 2: Convert to fraction form
    70,605.60/105,908.44 = 44,328.80/x
  3. Step 3: Cross multiply
    70,605.60x = 105,908.44 × 44,328.80
  4. Step 4: Simplify right side
    70,605.60x = 4,694,794,055.07
  5. Step 5: Solve for x
    x = 4,694,794,055.07/70,605.60
  6. Step 6: Final answer
    x = 66,493.23

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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.