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Finding the Fourth Proportional to 114,959.81, 158,679.71 and 74,123.96

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Solution

The fourth proportional to 114,959.81, 158,679.71 and 74,123.96 is: 102,313.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,959.81 : 158,679.71 = 74,123.96 : x
  2. Step 2: Convert to fraction form
    114,959.81/158,679.71 = 74,123.96/x
  3. Step 3: Cross multiply
    114,959.81x = 158,679.71 × 74,123.96
  4. Step 4: Simplify right side
    114,959.81x = 11,761,968,483.37
  5. Step 5: Solve for x
    x = 11,761,968,483.37/114,959.81
  6. Step 6: Final answer
    x = 102,313.75

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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.