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Finding the Fourth Proportional to 101,817.44, 152,730.96 and 84,015.08

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Solution

The fourth proportional to 101,817.44, 152,730.96 and 84,015.08 is: 126,026.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,817.44 : 152,730.96 = 84,015.08 : x
  2. Step 2: Convert to fraction form
    101,817.44/152,730.96 = 84,015.08/x
  3. Step 3: Cross multiply
    101,817.44x = 152,730.96 × 84,015.08
  4. Step 4: Simplify right side
    101,817.44x = 12,831,703,822.88
  5. Step 5: Solve for x
    x = 12,831,703,822.88/101,817.44
  6. Step 6: Final answer
    x = 126,026.58

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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.