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Finding the Fourth Proportional to 91,668.98, 137,429.46 and 32,472.36

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Solution

The fourth proportional to 91,668.98, 137,429.46 and 32,472.36 is: 48,682.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,668.98 : 137,429.46 = 32,472.36 : x
  2. Step 2: Convert to fraction form
    91,668.98/137,429.46 = 32,472.36/x
  3. Step 3: Cross multiply
    91,668.98x = 137,429.46 × 32,472.36
  4. Step 4: Simplify right side
    91,668.98x = 4,462,658,899.73
  5. Step 5: Solve for x
    x = 4,462,658,899.73/91,668.98
  6. Step 6: Final answer
    x = 48,682.33

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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.