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Finding the Fourth Proportional to 111,342.60, 166,904.55 and 99,532.80

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Solution

The fourth proportional to 111,342.60, 166,904.55 and 99,532.80 is: 149,201.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,342.60 : 166,904.55 = 99,532.80 : x
  2. Step 2: Convert to fraction form
    111,342.60/166,904.55 = 99,532.80/x
  3. Step 3: Cross multiply
    111,342.60x = 166,904.55 × 99,532.80
  4. Step 4: Simplify right side
    111,342.60x = 16,612,477,194.24
  5. Step 5: Solve for x
    x = 16,612,477,194.24/111,342.60
  6. Step 6: Final answer
    x = 149,201.45

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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.