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Finding the Fourth Proportional to 248,987.88, 372,851.02 and 154,402.76

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Solution

The fourth proportional to 248,987.88, 372,851.02 and 154,402.76 is: 231,212.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,987.88 : 372,851.02 = 154,402.76 : x
  2. Step 2: Convert to fraction form
    248,987.88/372,851.02 = 154,402.76/x
  3. Step 3: Cross multiply
    248,987.88x = 372,851.02 × 154,402.76
  4. Step 4: Simplify right side
    248,987.88x = 57,569,226,556.82
  5. Step 5: Solve for x
    x = 57,569,226,556.82/248,987.88
  6. Step 6: Final answer
    x = 231,212.97

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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.