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Finding the Fourth Proportional to 68,369.54, 94,323.66 and 42,831.46

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Solution

The fourth proportional to 68,369.54, 94,323.66 and 42,831.46 is: 59,090.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,369.54 : 94,323.66 = 42,831.46 : x
  2. Step 2: Convert to fraction form
    68,369.54/94,323.66 = 42,831.46/x
  3. Step 3: Cross multiply
    68,369.54x = 94,323.66 × 42,831.46
  4. Step 4: Simplify right side
    68,369.54x = 4,040,020,070.34
  5. Step 5: Solve for x
    x = 4,040,020,070.34/68,369.54
  6. Step 6: Final answer
    x = 59,090.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.