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Finding the Fourth Proportional to 68,047.81, 93,900.64 and 37,831.29

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Solution

The fourth proportional to 68,047.81, 93,900.64 and 37,831.29 is: 52,204.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,047.81 : 93,900.64 = 37,831.29 : x
  2. Step 2: Convert to fraction form
    68,047.81/93,900.64 = 37,831.29/x
  3. Step 3: Cross multiply
    68,047.81x = 93,900.64 × 37,831.29
  4. Step 4: Simplify right side
    68,047.81x = 3,552,382,343.03
  5. Step 5: Solve for x
    x = 3,552,382,343.03/68,047.81
  6. Step 6: Final answer
    x = 52,204.21

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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.