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Finding the Fourth Proportional to 110,973, 153,142.74 and 60,672

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Solution

The fourth proportional to 110,973, 153,142.74 and 60,672 is: 83,727.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,973 : 153,142.74 = 60,672 : x
  2. Step 2: Convert to fraction form
    110,973/153,142.74 = 60,672/x
  3. Step 3: Cross multiply
    110,973x = 153,142.74 × 60,672
  4. Step 4: Simplify right side
    110,973x = 9,291,476,321.28
  5. Step 5: Solve for x
    x = 9,291,476,321.28/110,973
  6. Step 6: Final answer
    x = 83,727.36

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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.