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Finding the Fourth Proportional to 189,602.74, 261,629.40 and 104,714.74

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Solution

The fourth proportional to 189,602.74, 261,629.40 and 104,714.74 is: 144,493.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,602.74 : 261,629.40 = 104,714.74 : x
  2. Step 2: Convert to fraction form
    189,602.74/261,629.40 = 104,714.74/x
  3. Step 3: Cross multiply
    189,602.74x = 261,629.40 × 104,714.74
  4. Step 4: Simplify right side
    189,602.74x = 27,396,454,597.36
  5. Step 5: Solve for x
    x = 27,396,454,597.36/189,602.74
  6. Step 6: Final answer
    x = 144,493.98

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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.