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Finding the Fourth Proportional to 58,418.58, 80,567.97 and 49,387.98

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Solution

The fourth proportional to 58,418.58, 80,567.97 and 49,387.98 is: 68,113.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,418.58 : 80,567.97 = 49,387.98 : x
  2. Step 2: Convert to fraction form
    58,418.58/80,567.97 = 49,387.98/x
  3. Step 3: Cross multiply
    58,418.58x = 80,567.97 × 49,387.98
  4. Step 4: Simplify right side
    58,418.58x = 3,979,089,291.00
  5. Step 5: Solve for x
    x = 3,979,089,291.00/58,418.58
  6. Step 6: Final answer
    x = 68,113.42

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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.