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Finding the Fourth Proportional to 136,436.92, 204,277.42 and 69,733.40

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Solution

The fourth proportional to 136,436.92, 204,277.42 and 69,733.40 is: 104,406.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,436.92 : 204,277.42 = 69,733.40 : x
  2. Step 2: Convert to fraction form
    136,436.92/204,277.42 = 69,733.40/x
  3. Step 3: Cross multiply
    136,436.92x = 204,277.42 × 69,733.40
  4. Step 4: Simplify right side
    136,436.92x = 14,244,959,039.83
  5. Step 5: Solve for x
    x = 14,244,959,039.83/136,436.92
  6. Step 6: Final answer
    x = 104,406.92

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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.