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Finding the Fourth Proportional to 352,753.40, 486,808.76 and 191,617.67

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Solution

The fourth proportional to 352,753.40, 486,808.76 and 191,617.67 is: 264,437.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,753.40 : 486,808.76 = 191,617.67 : x
  2. Step 2: Convert to fraction form
    352,753.40/486,808.76 = 191,617.67/x
  3. Step 3: Cross multiply
    352,753.40x = 486,808.76 × 191,617.67
  4. Step 4: Simplify right side
    352,753.40x = 93,281,162,022.86
  5. Step 5: Solve for x
    x = 93,281,162,022.86/352,753.40
  6. Step 6: Final answer
    x = 264,437.31

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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.