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Finding the Fourth Proportional to 91,886.78, 137,835.35 and 32,722.44

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Solution

The fourth proportional to 91,886.78, 137,835.35 and 32,722.44 is: 49,085.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,886.78 : 137,835.35 = 32,722.44 : x
  2. Step 2: Convert to fraction form
    91,886.78/137,835.35 = 32,722.44/x
  3. Step 3: Cross multiply
    91,886.78x = 137,835.35 × 32,722.44
  4. Step 4: Simplify right side
    91,886.78x = 4,510,308,806.64
  5. Step 5: Solve for x
    x = 4,510,308,806.64/91,886.78
  6. Step 6: Final answer
    x = 49,085.51

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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.