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Finding the Fourth Proportional to 347,906.66, 521,864.91 and 98,588.66

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Solution

The fourth proportional to 347,906.66, 521,864.91 and 98,588.66 is: 147,884.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,906.66 : 521,864.91 = 98,588.66 : x
  2. Step 2: Convert to fraction form
    347,906.66/521,864.91 = 98,588.66/x
  3. Step 3: Cross multiply
    347,906.66x = 521,864.91 × 98,588.66
  4. Step 4: Simplify right side
    347,906.66x = 51,449,962,177.92
  5. Step 5: Solve for x
    x = 51,449,962,177.92/347,906.66
  6. Step 6: Final answer
    x = 147,884.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.