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Finding the Fourth Proportional to 133,694.81, 200,407.26 and 83,809.94

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Solution

The fourth proportional to 133,694.81, 200,407.26 and 83,809.94 is: 125,630.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,694.81 : 200,407.26 = 83,809.94 : x
  2. Step 2: Convert to fraction form
    133,694.81/200,407.26 = 83,809.94/x
  3. Step 3: Cross multiply
    133,694.81x = 200,407.26 × 83,809.94
  4. Step 4: Simplify right side
    133,694.81x = 16,796,119,434.13
  5. Step 5: Solve for x
    x = 16,796,119,434.13/133,694.81
  6. Step 6: Final answer
    x = 125,630.31

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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.