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Finding the Fourth Proportional to 351,636.34, 485,258.38 and 190,492.03

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Solution

The fourth proportional to 351,636.34, 485,258.38 and 190,492.03 is: 262,879.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,636.34 : 485,258.38 = 190,492.03 : x
  2. Step 2: Convert to fraction form
    351,636.34/485,258.38 = 190,492.03/x
  3. Step 3: Cross multiply
    351,636.34x = 485,258.38 × 190,492.03
  4. Step 4: Simplify right side
    351,636.34x = 92,437,853,880.71
  5. Step 5: Solve for x
    x = 92,437,853,880.71/351,636.34
  6. Step 6: Final answer
    x = 262,879.13

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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.