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Finding the Fourth Proportional to 108,202.44, 162,012.06 and 70,669.56

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Solution

The fourth proportional to 108,202.44, 162,012.06 and 70,669.56 is: 105,813.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,202.44 : 162,012.06 = 70,669.56 : x
  2. Step 2: Convert to fraction form
    108,202.44/162,012.06 = 70,669.56/x
  3. Step 3: Cross multiply
    108,202.44x = 162,012.06 × 70,669.56
  4. Step 4: Simplify right side
    108,202.44x = 11,449,320,994.89
  5. Step 5: Solve for x
    x = 11,449,320,994.89/108,202.44
  6. Step 6: Final answer
    x = 105,813.89

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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.