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Finding the Fourth Proportional to 136,693.92, 204,970.64 and 61,773.48

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Solution

The fourth proportional to 136,693.92, 204,970.64 and 61,773.48 is: 92,628.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,693.92 : 204,970.64 = 61,773.48 : x
  2. Step 2: Convert to fraction form
    136,693.92/204,970.64 = 61,773.48/x
  3. Step 3: Cross multiply
    136,693.92x = 204,970.64 × 61,773.48
  4. Step 4: Simplify right side
    136,693.92x = 12,661,749,730.63
  5. Step 5: Solve for x
    x = 12,661,749,730.63/136,693.92
  6. Step 6: Final answer
    x = 92,628.48

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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.