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Finding the Fourth Proportional to 352,263.78, 486,119.66 and 191,117.66

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Solution

The fourth proportional to 352,263.78, 486,119.66 and 191,117.66 is: 263,740.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,263.78 : 486,119.66 = 191,117.66 : x
  2. Step 2: Convert to fraction form
    352,263.78/486,119.66 = 191,117.66/x
  3. Step 3: Cross multiply
    352,263.78x = 486,119.66 × 191,117.66
  4. Step 4: Simplify right side
    352,263.78x = 92,906,048,513.01
  5. Step 5: Solve for x
    x = 92,906,048,513.01/352,263.78
  6. Step 6: Final answer
    x = 263,740.00

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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.