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Finding the Fourth Proportional to 99,549.20, 149,496.60 and 52,893.20

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Solution

The fourth proportional to 99,549.20, 149,496.60 and 52,893.20 is: 79,431.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,549.20 : 149,496.60 = 52,893.20 : x
  2. Step 2: Convert to fraction form
    99,549.20/149,496.60 = 52,893.20/x
  3. Step 3: Cross multiply
    99,549.20x = 149,496.60 × 52,893.20
  4. Step 4: Simplify right side
    99,549.20x = 7,907,353,563.12
  5. Step 5: Solve for x
    x = 7,907,353,563.12/99,549.20
  6. Step 6: Final answer
    x = 79,431.61

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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.