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Finding the Fourth Proportional to 351,633.76, 485,254.08 and 190,489.46

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Solution

The fourth proportional to 351,633.76, 485,254.08 and 190,489.46 is: 262,875.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,633.76 : 485,254.08 = 190,489.46 : x
  2. Step 2: Convert to fraction form
    351,633.76/485,254.08 = 190,489.46/x
  3. Step 3: Cross multiply
    351,633.76x = 485,254.08 × 190,489.46
  4. Step 4: Simplify right side
    351,633.76x = 92,435,785,235.73
  5. Step 5: Solve for x
    x = 92,435,785,235.73/351,633.76
  6. Step 6: Final answer
    x = 262,875.17

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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.