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Finding the Fourth Proportional to 91,967.86, 126,973.74 and 60,190.48

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Solution

The fourth proportional to 91,967.86, 126,973.74 and 60,190.48 is: 83,100.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,967.86 : 126,973.74 = 60,190.48 : x
  2. Step 2: Convert to fraction form
    91,967.86/126,973.74 = 60,190.48/x
  3. Step 3: Cross multiply
    91,967.86x = 126,973.74 × 60,190.48
  4. Step 4: Simplify right side
    91,967.86x = 7,642,610,358.00
  5. Step 5: Solve for x
    x = 7,642,610,358.00/91,967.86
  6. Step 6: Final answer
    x = 83,100.88

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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.