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Finding the Fourth Proportional to 249,888.26, 374,831.93 and 81,408.39

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Solution

The fourth proportional to 249,888.26, 374,831.93 and 81,408.39 is: 122,112.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,888.26 : 374,831.93 = 81,408.39 : x
  2. Step 2: Convert to fraction form
    249,888.26/374,831.93 = 81,408.39/x
  3. Step 3: Cross multiply
    249,888.26x = 374,831.93 × 81,408.39
  4. Step 4: Simplify right side
    249,888.26x = 30,514,462,067.73
  5. Step 5: Solve for x
    x = 30,514,462,067.73/249,888.26
  6. Step 6: Final answer
    x = 122,112.43

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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.