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Finding the Fourth Proportional to 352,483.12, 486,431.76 and 191,338.48

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Solution

The fourth proportional to 352,483.12, 486,431.76 and 191,338.48 is: 264,049.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,483.12 : 486,431.76 = 191,338.48 : x
  2. Step 2: Convert to fraction form
    352,483.12/486,431.76 = 191,338.48/x
  3. Step 3: Cross multiply
    352,483.12x = 486,431.76 × 191,338.48
  4. Step 4: Simplify right side
    352,483.12x = 93,073,113,582.12
  5. Step 5: Solve for x
    x = 93,073,113,582.12/352,483.12
  6. Step 6: Final answer
    x = 264,049.85

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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.