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Finding the Fourth Proportional to 127,175.64, 190,796.72 and 73,816.32

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Solution

The fourth proportional to 127,175.64, 190,796.72 and 73,816.32 is: 110,743.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,175.64 : 190,796.72 = 73,816.32 : x
  2. Step 2: Convert to fraction form
    127,175.64/190,796.72 = 73,816.32/x
  3. Step 3: Cross multiply
    127,175.64x = 190,796.72 × 73,816.32
  4. Step 4: Simplify right side
    127,175.64x = 14,083,911,738.47
  5. Step 5: Solve for x
    x = 14,083,911,738.47/127,175.64
  6. Step 6: Final answer
    x = 110,743.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.