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Finding the Fourth Proportional to 91,704.60, 137,556.90 and 91,704.60

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Solution

The fourth proportional to 91,704.60, 137,556.90 and 91,704.60 is: 137,556.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,704.60 : 137,556.90 = 91,704.60 : x
  2. Step 2: Convert to fraction form
    91,704.60/137,556.90 = 91,704.60/x
  3. Step 3: Cross multiply
    91,704.60x = 137,556.90 × 91,704.60
  4. Step 4: Simplify right side
    91,704.60x = 12,614,600,491.74
  5. Step 5: Solve for x
    x = 12,614,600,491.74/91,704.60
  6. Step 6: Final answer
    x = 137,556.90

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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.