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Finding the Fourth Proportional to 351,347.77, 484,855.90 and 190,199.28

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Solution

The fourth proportional to 351,347.77, 484,855.90 and 190,199.28 is: 262,472.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,347.77 : 484,855.90 = 190,199.28 : x
  2. Step 2: Convert to fraction form
    351,347.77/484,855.90 = 190,199.28/x
  3. Step 3: Cross multiply
    351,347.77x = 484,855.90 × 190,199.28
  4. Step 4: Simplify right side
    351,347.77x = 92,219,242,608.25
  5. Step 5: Solve for x
    x = 92,219,242,608.25/351,347.77
  6. Step 6: Final answer
    x = 262,472.83

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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.