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Finding the Fourth Proportional to 133,082.64, 183,654.45 and 85,336.17

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Solution

The fourth proportional to 133,082.64, 183,654.45 and 85,336.17 is: 117,764.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,082.64 : 183,654.45 = 85,336.17 : x
  2. Step 2: Convert to fraction form
    133,082.64/183,654.45 = 85,336.17/x
  3. Step 3: Cross multiply
    133,082.64x = 183,654.45 × 85,336.17
  4. Step 4: Simplify right side
    133,082.64x = 15,672,367,366.46
  5. Step 5: Solve for x
    x = 15,672,367,366.46/133,082.64
  6. Step 6: Final answer
    x = 117,764.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.