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Finding the Fourth Proportional to 68,672.26, 94,704.44 and 47,123.98

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Solution

The fourth proportional to 68,672.26, 94,704.44 and 47,123.98 is: 64,987.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,672.26 : 94,704.44 = 47,123.98 : x
  2. Step 2: Convert to fraction form
    68,672.26/94,704.44 = 47,123.98/x
  3. Step 3: Cross multiply
    68,672.26x = 94,704.44 × 47,123.98
  4. Step 4: Simplify right side
    68,672.26x = 4,462,849,929.16
  5. Step 5: Solve for x
    x = 4,462,849,929.16/68,672.26
  6. Step 6: Final answer
    x = 64,987.67

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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.