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Finding the Fourth Proportional to 104,841, 144,690.30 and 60,129

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Solution

The fourth proportional to 104,841, 144,690.30 and 60,129 is: 82,983.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,841 : 144,690.30 = 60,129 : x
  2. Step 2: Convert to fraction form
    104,841/144,690.30 = 60,129/x
  3. Step 3: Cross multiply
    104,841x = 144,690.30 × 60,129
  4. Step 4: Simplify right side
    104,841x = 8,700,083,048.70
  5. Step 5: Solve for x
    x = 8,700,083,048.70/104,841
  6. Step 6: Final answer
    x = 82,983.59

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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.