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Finding the Fourth Proportional to 114,887.84, 158,467.31 and 74,529.49

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Solution

The fourth proportional to 114,887.84, 158,467.31 and 74,529.49 is: 102,800.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,887.84 : 158,467.31 = 74,529.49 : x
  2. Step 2: Convert to fraction form
    114,887.84/158,467.31 = 74,529.49/x
  3. Step 3: Cross multiply
    114,887.84x = 158,467.31 × 74,529.49
  4. Step 4: Simplify right side
    114,887.84x = 11,810,487,795.97
  5. Step 5: Solve for x
    x = 11,810,487,795.97/114,887.84
  6. Step 6: Final answer
    x = 102,800.16

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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.