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Finding the Fourth Proportional to 103,854.98, 143,315.73 and 58,542.37

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Solution

The fourth proportional to 103,854.98, 143,315.73 and 58,542.37 is: 80,786.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,854.98 : 143,315.73 = 58,542.37 : x
  2. Step 2: Convert to fraction form
    103,854.98/143,315.73 = 58,542.37/x
  3. Step 3: Cross multiply
    103,854.98x = 143,315.73 × 58,542.37
  4. Step 4: Simplify right side
    103,854.98x = 8,390,042,492.48
  5. Step 5: Solve for x
    x = 8,390,042,492.48/103,854.98
  6. Step 6: Final answer
    x = 80,786.14

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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.