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Finding the Fourth Proportional to 223,566.73, 308,390.45 and 140,648.60

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Solution

The fourth proportional to 223,566.73, 308,390.45 and 140,648.60 is: 194,012.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,566.73 : 308,390.45 = 140,648.60 : x
  2. Step 2: Convert to fraction form
    223,566.73/308,390.45 = 140,648.60/x
  3. Step 3: Cross multiply
    223,566.73x = 308,390.45 × 140,648.60
  4. Step 4: Simplify right side
    223,566.73x = 43,374,685,113.60
  5. Step 5: Solve for x
    x = 43,374,685,113.60/223,566.73
  6. Step 6: Final answer
    x = 194,012.26

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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.