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Finding the Fourth Proportional to 103,984.98, 143,495.98 and 58,662.28

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Solution

The fourth proportional to 103,984.98, 143,495.98 and 58,662.28 is: 80,952.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,984.98 : 143,495.98 = 58,662.28 : x
  2. Step 2: Convert to fraction form
    103,984.98/143,495.98 = 58,662.28/x
  3. Step 3: Cross multiply
    103,984.98x = 143,495.98 × 58,662.28
  4. Step 4: Simplify right side
    103,984.98x = 8,417,801,357.63
  5. Step 5: Solve for x
    x = 8,417,801,357.63/103,984.98
  6. Step 6: Final answer
    x = 80,952.09

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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.