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Finding the Fourth Proportional to 208,584.75, 312,886.85 and 60,840.75

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Solution

The fourth proportional to 208,584.75, 312,886.85 and 60,840.75 is: 91,263.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,584.75 : 312,886.85 = 60,840.75 : x
  2. Step 2: Convert to fraction form
    208,584.75/312,886.85 = 60,840.75/x
  3. Step 3: Cross multiply
    208,584.75x = 312,886.85 × 60,840.75
  4. Step 4: Simplify right side
    208,584.75x = 19,036,270,314.93
  5. Step 5: Solve for x
    x = 19,036,270,314.93/208,584.75
  6. Step 6: Final answer
    x = 91,263.96

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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.