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Finding the Fourth Proportional to 107,485.68, 161,262.29 and 83,873.88

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Solution

The fourth proportional to 107,485.68, 161,262.29 and 83,873.88 is: 125,837.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,485.68 : 161,262.29 = 83,873.88 : x
  2. Step 2: Convert to fraction form
    107,485.68/161,262.29 = 83,873.88/x
  3. Step 3: Cross multiply
    107,485.68x = 161,262.29 × 83,873.88
  4. Step 4: Simplify right side
    107,485.68x = 13,525,694,169.67
  5. Step 5: Solve for x
    x = 13,525,694,169.67/107,485.68
  6. Step 6: Final answer
    x = 125,837.17

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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.