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Finding the Fourth Proportional to 133,707.60, 200,512.80 and 67,125.60

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Solution

The fourth proportional to 133,707.60, 200,512.80 and 67,125.60 is: 100,664.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,707.60 : 200,512.80 = 67,125.60 : x
  2. Step 2: Convert to fraction form
    133,707.60/200,512.80 = 67,125.60/x
  3. Step 3: Cross multiply
    133,707.60x = 200,512.80 × 67,125.60
  4. Step 4: Simplify right side
    133,707.60x = 13,459,542,007.68
  5. Step 5: Solve for x
    x = 13,459,542,007.68/133,707.60
  6. Step 6: Final answer
    x = 100,664.00

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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.