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Finding the Fourth Proportional to 351,673.47, 485,309.87 and 190,528.52

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Solution

The fourth proportional to 351,673.47, 485,309.87 and 190,528.52 is: 262,929.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,673.47 : 485,309.87 = 190,528.52 : x
  2. Step 2: Convert to fraction form
    351,673.47/485,309.87 = 190,528.52/x
  3. Step 3: Cross multiply
    351,673.47x = 485,309.87 × 190,528.52
  4. Step 4: Simplify right side
    351,673.47x = 92,465,372,247.61
  5. Step 5: Solve for x
    x = 92,465,372,247.61/351,673.47
  6. Step 6: Final answer
    x = 262,929.62

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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.