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Finding the Fourth Proportional to 106,448.68, 159,669.56 and 43,250.12

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Solution

The fourth proportional to 106,448.68, 159,669.56 and 43,250.12 is: 64,873.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,448.68 : 159,669.56 = 43,250.12 : x
  2. Step 2: Convert to fraction form
    106,448.68/159,669.56 = 43,250.12/x
  3. Step 3: Cross multiply
    106,448.68x = 159,669.56 × 43,250.12
  4. Step 4: Simplify right side
    106,448.68x = 6,905,727,538.89
  5. Step 5: Solve for x
    x = 6,905,727,538.89/106,448.68
  6. Step 6: Final answer
    x = 64,873.77

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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.