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Finding the Fourth Proportional to 248,689.74, 343,042.17 and 151,849.38

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Solution

The fourth proportional to 248,689.74, 343,042.17 and 151,849.38 is: 209,460.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,689.74 : 343,042.17 = 151,849.38 : x
  2. Step 2: Convert to fraction form
    248,689.74/343,042.17 = 151,849.38/x
  3. Step 3: Cross multiply
    248,689.74x = 343,042.17 × 151,849.38
  4. Step 4: Simplify right side
    248,689.74x = 52,090,740,828.35
  5. Step 5: Solve for x
    x = 52,090,740,828.35/248,689.74
  6. Step 6: Final answer
    x = 209,460.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.