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Finding the Fourth Proportional to 867,151.72, 1,300,750.62 and 236,078.44

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Solution

The fourth proportional to 867,151.72, 1,300,750.62 and 236,078.44 is: 354,123.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,151.72 : 1,300,750.62 = 236,078.44 : x
  2. Step 2: Convert to fraction form
    867,151.72/1,300,750.62 = 236,078.44/x
  3. Step 3: Cross multiply
    867,151.72x = 1,300,750.62 × 236,078.44
  4. Step 4: Simplify right side
    867,151.72x = 307,079,177,198.63
  5. Step 5: Solve for x
    x = 307,079,177,198.63/867,151.72
  6. Step 6: Final answer
    x = 354,123.93

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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.