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Finding the Fourth Proportional to 136,394.59, 204,460.67 and 69,866.05

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Solution

The fourth proportional to 136,394.59, 204,460.67 and 69,866.05 is: 104,731.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,394.59 : 204,460.67 = 69,866.05 : x
  2. Step 2: Convert to fraction form
    136,394.59/204,460.67 = 69,866.05/x
  3. Step 3: Cross multiply
    136,394.59x = 204,460.67 × 69,866.05
  4. Step 4: Simplify right side
    136,394.59x = 14,284,859,393.25
  5. Step 5: Solve for x
    x = 14,284,859,393.25/136,394.59
  6. Step 6: Final answer
    x = 104,731.86

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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.