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Finding the Fourth Proportional to 104,893.50, 157,366.89 and 31,021.50

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Solution

The fourth proportional to 104,893.50, 157,366.89 and 31,021.50 is: 46,540.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,893.50 : 157,366.89 = 31,021.50 : x
  2. Step 2: Convert to fraction form
    104,893.50/157,366.89 = 31,021.50/x
  3. Step 3: Cross multiply
    104,893.50x = 157,366.89 × 31,021.50
  4. Step 4: Simplify right side
    104,893.50x = 4,881,756,978.14
  5. Step 5: Solve for x
    x = 4,881,756,978.14/104,893.50
  6. Step 6: Final answer
    x = 46,540.13

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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.