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Finding the Fourth Proportional to 99,662.40, 149,442.30 and 29,532.60

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Solution

The fourth proportional to 99,662.40, 149,442.30 and 29,532.60 is: 44,283.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,662.40 : 149,442.30 = 29,532.60 : x
  2. Step 2: Convert to fraction form
    99,662.40/149,442.30 = 29,532.60/x
  3. Step 3: Cross multiply
    99,662.40x = 149,442.30 × 29,532.60
  4. Step 4: Simplify right side
    99,662.40x = 4,413,419,668.98
  5. Step 5: Solve for x
    x = 4,413,419,668.98/99,662.40
  6. Step 6: Final answer
    x = 44,283.70

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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.