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Finding the Fourth Proportional to 220,808.66, 330,935.30 and 119,602.76

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Solution

The fourth proportional to 220,808.66, 330,935.30 and 119,602.76 is: 179,253.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,808.66 : 330,935.30 = 119,602.76 : x
  2. Step 2: Convert to fraction form
    220,808.66/330,935.30 = 119,602.76/x
  3. Step 3: Cross multiply
    220,808.66x = 330,935.30 × 119,602.76
  4. Step 4: Simplify right side
    220,808.66x = 39,580,775,261.43
  5. Step 5: Solve for x
    x = 39,580,775,261.43/220,808.66
  6. Step 6: Final answer
    x = 179,253.73

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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.