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Finding the Fourth Proportional to 161,298.56, 241,768.56 and 121,727.36

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Solution

The fourth proportional to 161,298.56, 241,768.56 and 121,727.36 is: 182,455.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,298.56 : 241,768.56 = 121,727.36 : x
  2. Step 2: Convert to fraction form
    161,298.56/241,768.56 = 121,727.36/x
  3. Step 3: Cross multiply
    161,298.56x = 241,768.56 × 121,727.36
  4. Step 4: Simplify right side
    161,298.56x = 29,429,848,539.80
  5. Step 5: Solve for x
    x = 29,429,848,539.80/161,298.56
  6. Step 6: Final answer
    x = 182,455.74

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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.