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Finding the Fourth Proportional to 354,550.18, 531,829.89 and 117,892.88

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Solution

The fourth proportional to 354,550.18, 531,829.89 and 117,892.88 is: 176,840.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,550.18 : 531,829.89 = 117,892.88 : x
  2. Step 2: Convert to fraction form
    354,550.18/531,829.89 = 117,892.88/x
  3. Step 3: Cross multiply
    354,550.18x = 531,829.89 × 117,892.88
  4. Step 4: Simplify right side
    354,550.18x = 62,698,957,402.18
  5. Step 5: Solve for x
    x = 62,698,957,402.18/354,550.18
  6. Step 6: Final answer
    x = 176,840.86

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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.