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Finding the Fourth Proportional to 133,601.40, 200,531.70 and 67,116.60

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Solution

The fourth proportional to 133,601.40, 200,531.70 and 67,116.60 is: 100,740.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,601.40 : 200,531.70 = 67,116.60 : x
  2. Step 2: Convert to fraction form
    133,601.40/200,531.70 = 67,116.60/x
  3. Step 3: Cross multiply
    133,601.40x = 200,531.70 × 67,116.60
  4. Step 4: Simplify right side
    133,601.40x = 13,459,005,896.22
  5. Step 5: Solve for x
    x = 13,459,005,896.22/133,601.40
  6. Step 6: Final answer
    x = 100,740.01

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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.