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Finding the Fourth Proportional to 122,516.60, 183,731.70 and 43,633.40

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Solution

The fourth proportional to 122,516.60, 183,731.70 and 43,633.40 is: 65,434.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,516.60 : 183,731.70 = 43,633.40 : x
  2. Step 2: Convert to fraction form
    122,516.60/183,731.70 = 43,633.40/x
  3. Step 3: Cross multiply
    122,516.60x = 183,731.70 × 43,633.40
  4. Step 4: Simplify right side
    122,516.60x = 8,016,838,758.78
  5. Step 5: Solve for x
    x = 8,016,838,758.78/122,516.60
  6. Step 6: Final answer
    x = 65,434.71

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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.