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Finding the Fourth Proportional to 68,064.80, 102,097.20 and 49,256.60

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Solution

The fourth proportional to 68,064.80, 102,097.20 and 49,256.60 is: 73,884.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,064.80 : 102,097.20 = 49,256.60 : x
  2. Step 2: Convert to fraction form
    68,064.80/102,097.20 = 49,256.60/x
  3. Step 3: Cross multiply
    68,064.80x = 102,097.20 × 49,256.60
  4. Step 4: Simplify right side
    68,064.80x = 5,028,960,941.52
  5. Step 5: Solve for x
    x = 5,028,960,941.52/68,064.80
  6. Step 6: Final answer
    x = 73,884.90

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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.