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Finding the Fourth Proportional to 103,648.99, 154,716.48 and 88,952.35

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Solution

The fourth proportional to 103,648.99, 154,716.48 and 88,952.35 is: 132,778.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,648.99 : 154,716.48 = 88,952.35 : x
  2. Step 2: Convert to fraction form
    103,648.99/154,716.48 = 88,952.35/x
  3. Step 3: Cross multiply
    103,648.99x = 154,716.48 × 88,952.35
  4. Step 4: Simplify right side
    103,648.99x = 13,762,394,479.73
  5. Step 5: Solve for x
    x = 13,762,394,479.73/103,648.99
  6. Step 6: Final answer
    x = 132,778.86

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.