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Finding the Fourth Proportional to 122,524.60, 183,743.70 and 43,641.40

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Solution

The fourth proportional to 122,524.60, 183,743.70 and 43,641.40 is: 65,446.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,524.60 : 183,743.70 = 43,641.40 : x
  2. Step 2: Convert to fraction form
    122,524.60/183,743.70 = 43,641.40/x
  3. Step 3: Cross multiply
    122,524.60x = 183,743.70 × 43,641.40
  4. Step 4: Simplify right side
    122,524.60x = 8,018,832,309.18
  5. Step 5: Solve for x
    x = 8,018,832,309.18/122,524.60
  6. Step 6: Final answer
    x = 65,446.71

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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.