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Finding the Fourth Proportional to 122,368.38, 183,552.56 and 43,485.72

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Solution

The fourth proportional to 122,368.38, 183,552.56 and 43,485.72 is: 65,228.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,368.38 : 183,552.56 = 43,485.72 : x
  2. Step 2: Convert to fraction form
    122,368.38/183,552.56 = 43,485.72/x
  3. Step 3: Cross multiply
    122,368.38x = 183,552.56 × 43,485.72
  4. Step 4: Simplify right side
    122,368.38x = 7,981,915,229.44
  5. Step 5: Solve for x
    x = 7,981,915,229.44/122,368.38
  6. Step 6: Final answer
    x = 65,228.58

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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.