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Finding the Fourth Proportional to 432,791.51, 649,236.47 and 148,503.38

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Solution

The fourth proportional to 432,791.51, 649,236.47 and 148,503.38 is: 222,771.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,791.51 : 649,236.47 = 148,503.38 : x
  2. Step 2: Convert to fraction form
    432,791.51/649,236.47 = 148,503.38/x
  3. Step 3: Cross multiply
    432,791.51x = 649,236.47 × 148,503.38
  4. Step 4: Simplify right side
    432,791.51x = 96,413,806,225.57
  5. Step 5: Solve for x
    x = 96,413,806,225.57/432,791.51
  6. Step 6: Final answer
    x = 222,771.95

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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.