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Finding the Fourth Proportional to 220,051.98, 303,676.56 and 134,015

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Solution

The fourth proportional to 220,051.98, 303,676.56 and 134,015 is: 184,943.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,051.98 : 303,676.56 = 134,015 : x
  2. Step 2: Convert to fraction form
    220,051.98/303,676.56 = 134,015/x
  3. Step 3: Cross multiply
    220,051.98x = 303,676.56 × 134,015
  4. Step 4: Simplify right side
    220,051.98x = 40,697,214,188.40
  5. Step 5: Solve for x
    x = 40,697,214,188.40/220,051.98
  6. Step 6: Final answer
    x = 184,943.64

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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.