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Finding the Fourth Proportional to 133,706.28, 200,455.32 and 66,191.76

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Solution

The fourth proportional to 133,706.28, 200,455.32 and 66,191.76 is: 99,236.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,706.28 : 200,455.32 = 66,191.76 : x
  2. Step 2: Convert to fraction form
    133,706.28/200,455.32 = 66,191.76/x
  3. Step 3: Cross multiply
    133,706.28x = 200,455.32 × 66,191.76
  4. Step 4: Simplify right side
    133,706.28x = 13,268,490,432.16
  5. Step 5: Solve for x
    x = 13,268,490,432.16/133,706.28
  6. Step 6: Final answer
    x = 99,236.10

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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.