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Finding the Fourth Proportional to 75,085.58, 103,573.08 and 49,591.98

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Solution

The fourth proportional to 75,085.58, 103,573.08 and 49,591.98 is: 68,407.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,085.58 : 103,573.08 = 49,591.98 : x
  2. Step 2: Convert to fraction form
    75,085.58/103,573.08 = 49,591.98/x
  3. Step 3: Cross multiply
    75,085.58x = 103,573.08 × 49,591.98
  4. Step 4: Simplify right side
    75,085.58x = 5,136,394,111.90
  5. Step 5: Solve for x
    x = 5,136,394,111.90/75,085.58
  6. Step 6: Final answer
    x = 68,407.20

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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.