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Finding the Fourth Proportional to 68,493.21, 102,573.74 and 47,373.98

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Solution

The fourth proportional to 68,493.21, 102,573.74 and 47,373.98 is: 70,946.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,493.21 : 102,573.74 = 47,373.98 : x
  2. Step 2: Convert to fraction form
    68,493.21/102,573.74 = 47,373.98/x
  3. Step 3: Cross multiply
    68,493.21x = 102,573.74 × 47,373.98
  4. Step 4: Simplify right side
    68,493.21x = 4,859,326,307.29
  5. Step 5: Solve for x
    x = 4,859,326,307.29/68,493.21
  6. Step 6: Final answer
    x = 70,946.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.