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Finding the Fourth Proportional to 114,937.48, 158,687.82 and 74,119.87

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Solution

The fourth proportional to 114,937.48, 158,687.82 and 74,119.87 is: 102,333.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,937.48 : 158,687.82 = 74,119.87 : x
  2. Step 2: Convert to fraction form
    114,937.48/158,687.82 = 74,119.87/x
  3. Step 3: Cross multiply
    114,937.48x = 158,687.82 × 74,119.87
  4. Step 4: Simplify right side
    114,937.48x = 11,761,920,588.98
  5. Step 5: Solve for x
    x = 11,761,920,588.98/114,937.48
  6. Step 6: Final answer
    x = 102,333.20

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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.