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Finding the Fourth Proportional to 200,316.60, 300,620.70 and 133,734.60

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Solution

The fourth proportional to 200,316.60, 300,620.70 and 133,734.60 is: 200,699.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,316.60 : 300,620.70 = 133,734.60 : x
  2. Step 2: Convert to fraction form
    200,316.60/300,620.70 = 133,734.60/x
  3. Step 3: Cross multiply
    200,316.60x = 300,620.70 × 133,734.60
  4. Step 4: Simplify right side
    200,316.60x = 40,203,389,066.22
  5. Step 5: Solve for x
    x = 40,203,389,066.22/200,316.60
  6. Step 6: Final answer
    x = 200,699.24

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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.