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Finding the Fourth Proportional to 133,209.60, 199,814.40 and 106,965.60

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Solution

The fourth proportional to 133,209.60, 199,814.40 and 106,965.60 is: 160,448.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,209.60 : 199,814.40 = 106,965.60 : x
  2. Step 2: Convert to fraction form
    133,209.60/199,814.40 = 106,965.60/x
  3. Step 3: Cross multiply
    133,209.60x = 199,814.40 × 106,965.60
  4. Step 4: Simplify right side
    133,209.60x = 21,373,267,184.64
  5. Step 5: Solve for x
    x = 21,373,267,184.64/133,209.60
  6. Step 6: Final answer
    x = 160,448.40

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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.