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Finding the Fourth Proportional to 133,965.72, 200,948.52 and 104,405.64

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Solution

The fourth proportional to 133,965.72, 200,948.52 and 104,405.64 is: 156,608.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,965.72 : 200,948.52 = 104,405.64 : x
  2. Step 2: Convert to fraction form
    133,965.72/200,948.52 = 104,405.64/x
  3. Step 3: Cross multiply
    133,965.72x = 200,948.52 × 104,405.64
  4. Step 4: Simplify right side
    133,965.72x = 20,980,158,837.65
  5. Step 5: Solve for x
    x = 20,980,158,837.65/133,965.72
  6. Step 6: Final answer
    x = 156,608.41

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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.