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Finding the Fourth Proportional to 136,630.81, 204,886.02 and 61,747.93

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Solution

The fourth proportional to 136,630.81, 204,886.02 and 61,747.93 is: 92,594.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,630.81 : 204,886.02 = 61,747.93 : x
  2. Step 2: Convert to fraction form
    136,630.81/204,886.02 = 61,747.93/x
  3. Step 3: Cross multiply
    136,630.81x = 204,886.02 × 61,747.93
  4. Step 4: Simplify right side
    136,630.81x = 12,651,287,620.94
  5. Step 5: Solve for x
    x = 12,651,287,620.94/136,630.81
  6. Step 6: Final answer
    x = 92,594.69

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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.