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Finding the Fourth Proportional to 121,606.65, 182,410.58 and 54,968.76

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Solution

The fourth proportional to 121,606.65, 182,410.58 and 54,968.76 is: 82,453.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,606.65 : 182,410.58 = 54,968.76 : x
  2. Step 2: Convert to fraction form
    121,606.65/182,410.58 = 54,968.76/x
  3. Step 3: Cross multiply
    121,606.65x = 182,410.58 × 54,968.76
  4. Step 4: Simplify right side
    121,606.65x = 10,026,883,530.90
  5. Step 5: Solve for x
    x = 10,026,883,530.90/121,606.65
  6. Step 6: Final answer
    x = 82,453.41

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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.