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Finding the Fourth Proportional to 114,972.53, 158,665.16 and 69,640.88

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Solution

The fourth proportional to 114,972.53, 158,665.16 and 69,640.88 is: 96,106.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,972.53 : 158,665.16 = 69,640.88 : x
  2. Step 2: Convert to fraction form
    114,972.53/158,665.16 = 69,640.88/x
  3. Step 3: Cross multiply
    114,972.53x = 158,665.16 × 69,640.88
  4. Step 4: Simplify right side
    114,972.53x = 11,049,580,748.52
  5. Step 5: Solve for x
    x = 11,049,580,748.52/114,972.53
  6. Step 6: Final answer
    x = 96,106.27

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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.