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Finding the Fourth Proportional to 351,675.54, 485,312.72 and 190,530.60

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Solution

The fourth proportional to 351,675.54, 485,312.72 and 190,530.60 is: 262,932.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,675.54 : 485,312.72 = 190,530.60 : x
  2. Step 2: Convert to fraction form
    351,675.54/485,312.72 = 190,530.60/x
  3. Step 3: Cross multiply
    351,675.54x = 485,312.72 × 190,530.60
  4. Step 4: Simplify right side
    351,675.54x = 92,466,920,956.66
  5. Step 5: Solve for x
    x = 92,466,920,956.66/351,675.54
  6. Step 6: Final answer
    x = 262,932.48

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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.