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Finding the Fourth Proportional to 104,330.50, 143,976.09 and 59,618.50

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Solution

The fourth proportional to 104,330.50, 143,976.09 and 59,618.50 is: 82,273.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,330.50 : 143,976.09 = 59,618.50 : x
  2. Step 2: Convert to fraction form
    104,330.50/143,976.09 = 59,618.50/x
  3. Step 3: Cross multiply
    104,330.50x = 143,976.09 × 59,618.50
  4. Step 4: Simplify right side
    104,330.50x = 8,583,638,521.67
  5. Step 5: Solve for x
    x = 8,583,638,521.67/104,330.50
  6. Step 6: Final answer
    x = 82,273.53

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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.