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Finding the Fourth Proportional to 122,510.01, 183,791.19 and 42,550.47

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Solution

The fourth proportional to 122,510.01, 183,791.19 and 42,550.47 is: 63,834.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,510.01 : 183,791.19 = 42,550.47 : x
  2. Step 2: Convert to fraction form
    122,510.01/183,791.19 = 42,550.47/x
  3. Step 3: Cross multiply
    122,510.01x = 183,791.19 × 42,550.47
  4. Step 4: Simplify right side
    122,510.01x = 7,820,401,516.36
  5. Step 5: Solve for x
    x = 7,820,401,516.36/122,510.01
  6. Step 6: Final answer
    x = 63,834.80

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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.