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Finding the Fourth Proportional to 345,047.68, 476,187.56 and 209,093.54

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Solution

The fourth proportional to 345,047.68, 476,187.56 and 209,093.54 is: 288,562.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,047.68 : 476,187.56 = 209,093.54 : x
  2. Step 2: Convert to fraction form
    345,047.68/476,187.56 = 209,093.54/x
  3. Step 3: Cross multiply
    345,047.68x = 476,187.56 × 209,093.54
  4. Step 4: Simplify right side
    345,047.68x = 99,567,739,982.06
  5. Step 5: Solve for x
    x = 99,567,739,982.06/345,047.68
  6. Step 6: Final answer
    x = 288,562.26

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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.