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Finding the Fourth Proportional to 345,611.15, 476,945.56 and 192,659.06

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Solution

The fourth proportional to 345,611.15, 476,945.56 and 192,659.06 is: 265,870.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,611.15 : 476,945.56 = 192,659.06 : x
  2. Step 2: Convert to fraction form
    345,611.15/476,945.56 = 192,659.06/x
  3. Step 3: Cross multiply
    345,611.15x = 476,945.56 × 192,659.06
  4. Step 4: Simplify right side
    345,611.15x = 91,887,880,394.40
  5. Step 5: Solve for x
    x = 91,887,880,394.40/345,611.15
  6. Step 6: Final answer
    x = 265,870.71

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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.