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Finding the Fourth Proportional to 121,956.48, 182,956.48 and 43,116.48

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Solution

The fourth proportional to 121,956.48, 182,956.48 and 43,116.48 is: 64,682.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,956.48 : 182,956.48 = 43,116.48 : x
  2. Step 2: Convert to fraction form
    121,956.48/182,956.48 = 43,116.48/x
  3. Step 3: Cross multiply
    121,956.48x = 182,956.48 × 43,116.48
  4. Step 4: Simplify right side
    121,956.48x = 7,888,439,410.79
  5. Step 5: Solve for x
    x = 7,888,439,410.79/121,956.48
  6. Step 6: Final answer
    x = 64,682.41

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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.