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Finding the Fourth Proportional to 223,259.50, 308,098.23 and 122,663.98

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Solution

The fourth proportional to 223,259.50, 308,098.23 and 122,663.98 is: 169,276.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,259.50 : 308,098.23 = 122,663.98 : x
  2. Step 2: Convert to fraction form
    223,259.50/308,098.23 = 122,663.98/x
  3. Step 3: Cross multiply
    223,259.50x = 308,098.23 × 122,663.98
  4. Step 4: Simplify right side
    223,259.50x = 37,792,555,122.76
  5. Step 5: Solve for x
    x = 37,792,555,122.76/223,259.50
  6. Step 6: Final answer
    x = 169,276.36

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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.