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Finding the Fourth Proportional to 345,508.92, 476,781.33 and 190,453.42

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Solution

The fourth proportional to 345,508.92, 476,781.33 and 190,453.42 is: 262,814.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,508.92 : 476,781.33 = 190,453.42 : x
  2. Step 2: Convert to fraction form
    345,508.92/476,781.33 = 190,453.42/x
  3. Step 3: Cross multiply
    345,508.92x = 476,781.33 × 190,453.42
  4. Step 4: Simplify right side
    345,508.92x = 90,804,636,200.83
  5. Step 5: Solve for x
    x = 90,804,636,200.83/345,508.92
  6. Step 6: Final answer
    x = 262,814.16

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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.