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Finding the Fourth Proportional to 111,063.60, 166,498.20 and 99,253.80

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Solution

The fourth proportional to 111,063.60, 166,498.20 and 99,253.80 is: 148,793.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,063.60 : 166,498.20 = 99,253.80 : x
  2. Step 2: Convert to fraction form
    111,063.60/166,498.20 = 99,253.80/x
  3. Step 3: Cross multiply
    111,063.60x = 166,498.20 × 99,253.80
  4. Step 4: Simplify right side
    111,063.60x = 16,525,579,043.16
  5. Step 5: Solve for x
    x = 16,525,579,043.16/111,063.60
  6. Step 6: Final answer
    x = 148,793.84

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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.