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Finding the Fourth Proportional to 223,495.50, 308,423.79 and 122,893.50

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Solution

The fourth proportional to 223,495.50, 308,423.79 and 122,893.50 is: 169,593.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,495.50 : 308,423.79 = 122,893.50 : x
  2. Step 2: Convert to fraction form
    223,495.50/308,423.79 = 122,893.50/x
  3. Step 3: Cross multiply
    223,495.50x = 308,423.79 × 122,893.50
  4. Step 4: Simplify right side
    223,495.50x = 37,903,279,036.37
  5. Step 5: Solve for x
    x = 37,903,279,036.37/223,495.50
  6. Step 6: Final answer
    x = 169,593.03

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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.