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Finding the Fourth Proportional to 258,194.51, 387,357.47 and 151,668.54

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Solution

The fourth proportional to 258,194.51, 387,357.47 and 151,668.54 is: 227,541.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,194.51 : 387,357.47 = 151,668.54 : x
  2. Step 2: Convert to fraction form
    258,194.51/387,357.47 = 151,668.54/x
  3. Step 3: Cross multiply
    258,194.51x = 387,357.47 × 151,668.54
  4. Step 4: Simplify right side
    258,194.51x = 58,749,941,932.99
  5. Step 5: Solve for x
    x = 58,749,941,932.99/258,194.51
  6. Step 6: Final answer
    x = 227,541.41

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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.