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Finding the Fourth Proportional to 136,258.54, 204,092.40 and 65,990.50

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Solution

The fourth proportional to 136,258.54, 204,092.40 and 65,990.50 is: 98,842.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,258.54 : 204,092.40 = 65,990.50 : x
  2. Step 2: Convert to fraction form
    136,258.54/204,092.40 = 65,990.50/x
  3. Step 3: Cross multiply
    136,258.54x = 204,092.40 × 65,990.50
  4. Step 4: Simplify right side
    136,258.54x = 13,468,159,522.20
  5. Step 5: Solve for x
    x = 13,468,159,522.20/136,258.54
  6. Step 6: Final answer
    x = 98,842.68

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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.