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Finding the Fourth Proportional to 308,258.73, 462,385.94 and 158,540.76

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Solution

The fourth proportional to 308,258.73, 462,385.94 and 158,540.76 is: 237,810.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,258.73 : 462,385.94 = 158,540.76 : x
  2. Step 2: Convert to fraction form
    308,258.73/462,385.94 = 158,540.76/x
  3. Step 3: Cross multiply
    308,258.73x = 462,385.94 × 158,540.76
  4. Step 4: Simplify right side
    308,258.73x = 73,307,017,548.21
  5. Step 5: Solve for x
    x = 73,307,017,548.21/308,258.73
  6. Step 6: Final answer
    x = 237,810.03

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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.