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Finding the Fourth Proportional to 248,650.83, 343,137.96 and 135,473.58

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Solution

The fourth proportional to 248,650.83, 343,137.96 and 135,473.58 is: 186,953.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,650.83 : 343,137.96 = 135,473.58 : x
  2. Step 2: Convert to fraction form
    248,650.83/343,137.96 = 135,473.58/x
  3. Step 3: Cross multiply
    248,650.83x = 343,137.96 × 135,473.58
  4. Step 4: Simplify right side
    248,650.83x = 46,486,127,875.10
  5. Step 5: Solve for x
    x = 46,486,127,875.10/248,650.83
  6. Step 6: Final answer
    x = 186,953.44

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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.