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Finding the Fourth Proportional to 352,493.34, 486,449.62 and 191,348.40

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Solution

The fourth proportional to 352,493.34, 486,449.62 and 191,348.40 is: 264,065.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,493.34 : 486,449.62 = 191,348.40 : x
  2. Step 2: Convert to fraction form
    352,493.34/486,449.62 = 191,348.40/x
  3. Step 3: Cross multiply
    352,493.34x = 486,449.62 × 191,348.40
  4. Step 4: Simplify right side
    352,493.34x = 93,081,356,467.61
  5. Step 5: Solve for x
    x = 93,081,356,467.61/352,493.34
  6. Step 6: Final answer
    x = 264,065.57

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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.