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Finding the Fourth Proportional to 249,831.42, 374,893.74 and 92,169.78

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Solution

The fourth proportional to 249,831.42, 374,893.74 and 92,169.78 is: 138,308.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,831.42 : 374,893.74 = 92,169.78 : x
  2. Step 2: Convert to fraction form
    249,831.42/374,893.74 = 92,169.78/x
  3. Step 3: Cross multiply
    249,831.42x = 374,893.74 × 92,169.78
  4. Step 4: Simplify right side
    249,831.42x = 34,553,873,539.18
  5. Step 5: Solve for x
    x = 34,553,873,539.18/249,831.42
  6. Step 6: Final answer
    x = 138,308.76

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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.