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Finding the Fourth Proportional to 99,573.36, 149,313 and 36,349.60

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Solution

The fourth proportional to 99,573.36, 149,313 and 36,349.60 is: 54,507.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,573.36 : 149,313 = 36,349.60 : x
  2. Step 2: Convert to fraction form
    99,573.36/149,313 = 36,349.60/x
  3. Step 3: Cross multiply
    99,573.36x = 149,313 × 36,349.60
  4. Step 4: Simplify right side
    99,573.36x = 5,427,467,824.80
  5. Step 5: Solve for x
    x = 5,427,467,824.80/99,573.36
  6. Step 6: Final answer
    x = 54,507.23

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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.