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Finding the Fourth Proportional to 110,806.40, 166,209.60 and 64,004.60

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Solution

The fourth proportional to 110,806.40, 166,209.60 and 64,004.60 is: 96,006.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,806.40 : 166,209.60 = 64,004.60 : x
  2. Step 2: Convert to fraction form
    110,806.40/166,209.60 = 64,004.60/x
  3. Step 3: Cross multiply
    110,806.40x = 166,209.60 × 64,004.60
  4. Step 4: Simplify right side
    110,806.40x = 10,638,178,964.16
  5. Step 5: Solve for x
    x = 10,638,178,964.16/110,806.40
  6. Step 6: Final answer
    x = 96,006.90

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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.