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Finding the Fourth Proportional to 249,722.58, 374,408.88 and 91,930.56

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Solution

The fourth proportional to 249,722.58, 374,408.88 and 91,930.56 is: 137,831.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,722.58 : 374,408.88 = 91,930.56 : x
  2. Step 2: Convert to fraction form
    249,722.58/374,408.88 = 91,930.56/x
  3. Step 3: Cross multiply
    249,722.58x = 374,408.88 × 91,930.56
  4. Step 4: Simplify right side
    249,722.58x = 34,419,618,007.37
  5. Step 5: Solve for x
    x = 34,419,618,007.37/249,722.58
  6. Step 6: Final answer
    x = 137,831.42

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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.