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Finding the Fourth Proportional to 248,628.98, 343,149.15 and 146,679.39

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Solution

The fourth proportional to 248,628.98, 343,149.15 and 146,679.39 is: 202,441.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,628.98 : 343,149.15 = 146,679.39 : x
  2. Step 2: Convert to fraction form
    248,628.98/343,149.15 = 146,679.39/x
  3. Step 3: Cross multiply
    248,628.98x = 343,149.15 × 146,679.39
  4. Step 4: Simplify right side
    248,628.98x = 50,332,908,967.39
  5. Step 5: Solve for x
    x = 50,332,908,967.39/248,628.98
  6. Step 6: Final answer
    x = 202,441.84

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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.