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Finding the Fourth Proportional to 110,971.75, 153,141.56 and 60,670.75

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Solution

The fourth proportional to 110,971.75, 153,141.56 and 60,670.75 is: 83,725.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,971.75 : 153,141.56 = 60,670.75 : x
  2. Step 2: Convert to fraction form
    110,971.75/153,141.56 = 60,670.75/x
  3. Step 3: Cross multiply
    110,971.75x = 153,141.56 × 60,670.75
  4. Step 4: Simplify right side
    110,971.75x = 9,291,213,301.37
  5. Step 5: Solve for x
    x = 9,291,213,301.37/110,971.75
  6. Step 6: Final answer
    x = 83,725.93

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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.