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Finding the Fourth Proportional to 356,959.11, 492,604.32 and 195,815.46

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Solution

The fourth proportional to 356,959.11, 492,604.32 and 195,815.46 is: 270,225.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,959.11 : 492,604.32 = 195,815.46 : x
  2. Step 2: Convert to fraction form
    356,959.11/492,604.32 = 195,815.46/x
  3. Step 3: Cross multiply
    356,959.11x = 492,604.32 × 195,815.46
  4. Step 4: Simplify right side
    356,959.11x = 96,459,541,518.79
  5. Step 5: Solve for x
    x = 96,459,541,518.79/356,959.11
  6. Step 6: Final answer
    x = 270,225.75

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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.