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Finding the Fourth Proportional to 104,930.29, 144,787.26 and 58,980.88

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Solution

The fourth proportional to 104,930.29, 144,787.26 and 58,980.88 is: 81,384.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,930.29 : 144,787.26 = 58,980.88 : x
  2. Step 2: Convert to fraction form
    104,930.29/144,787.26 = 58,980.88/x
  3. Step 3: Cross multiply
    104,930.29x = 144,787.26 × 58,980.88
  4. Step 4: Simplify right side
    104,930.29x = 8,539,680,007.59
  5. Step 5: Solve for x
    x = 8,539,680,007.59/104,930.29
  6. Step 6: Final answer
    x = 81,384.32

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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.