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Finding the Fourth Proportional to 185,559.75, 277,970.99 and 91,779.27

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Solution

The fourth proportional to 185,559.75, 277,970.99 and 91,779.27 is: 137,486.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,559.75 : 277,970.99 = 91,779.27 : x
  2. Step 2: Convert to fraction form
    185,559.75/277,970.99 = 91,779.27/x
  3. Step 3: Cross multiply
    185,559.75x = 277,970.99 × 91,779.27
  4. Step 4: Simplify right side
    185,559.75x = 25,511,974,084.48
  5. Step 5: Solve for x
    x = 25,511,974,084.48/185,559.75
  6. Step 6: Final answer
    x = 137,486.57

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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.