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Finding the Fourth Proportional to 122,108.70, 183,195.45 and 43,214.70

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Solution

The fourth proportional to 122,108.70, 183,195.45 and 43,214.70 is: 64,833.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,108.70 : 183,195.45 = 43,214.70 : x
  2. Step 2: Convert to fraction form
    122,108.70/183,195.45 = 43,214.70/x
  3. Step 3: Cross multiply
    122,108.70x = 183,195.45 × 43,214.70
  4. Step 4: Simplify right side
    122,108.70x = 7,916,736,413.12
  5. Step 5: Solve for x
    x = 7,916,736,413.12/122,108.70
  6. Step 6: Final answer
    x = 64,833.52

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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.