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Finding the Fourth Proportional to 351,752.52, 485,417.88 and 190,611.96

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Solution

The fourth proportional to 351,752.52, 485,417.88 and 190,611.96 is: 263,044.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,752.52 : 485,417.88 = 190,611.96 : x
  2. Step 2: Convert to fraction form
    351,752.52/485,417.88 = 190,611.96/x
  3. Step 3: Cross multiply
    351,752.52x = 485,417.88 × 190,611.96
  4. Step 4: Simplify right side
    351,752.52x = 92,526,453,525.84
  5. Step 5: Solve for x
    x = 92,526,453,525.84/351,752.52
  6. Step 6: Final answer
    x = 263,044.18

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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.