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Finding the Fourth Proportional to 107,955.09, 148,978.26 and 60,211.51

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Solution

The fourth proportional to 107,955.09, 148,978.26 and 60,211.51 is: 83,092.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,955.09 : 148,978.26 = 60,211.51 : x
  2. Step 2: Convert to fraction form
    107,955.09/148,978.26 = 60,211.51/x
  3. Step 3: Cross multiply
    107,955.09x = 148,978.26 × 60,211.51
  4. Step 4: Simplify right side
    107,955.09x = 8,970,205,619.33
  5. Step 5: Solve for x
    x = 8,970,205,619.33/107,955.09
  6. Step 6: Final answer
    x = 83,092.01

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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.