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Finding the Fourth Proportional to 104,790.73, 144,611.88 and 57,044.06

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Solution

The fourth proportional to 104,790.73, 144,611.88 and 57,044.06 is: 78,721.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,790.73 : 144,611.88 = 57,044.06 : x
  2. Step 2: Convert to fraction form
    104,790.73/144,611.88 = 57,044.06/x
  3. Step 3: Cross multiply
    104,790.73x = 144,611.88 × 57,044.06
  4. Step 4: Simplify right side
    104,790.73x = 8,249,248,474.21
  5. Step 5: Solve for x
    x = 8,249,248,474.21/104,790.73
  6. Step 6: Final answer
    x = 78,721.17

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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.