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Finding the Fourth Proportional to 98,846.50, 147,897.75 and 69,321.94

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Solution

The fourth proportional to 98,846.50, 147,897.75 and 69,321.94 is: 103,722.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,846.50 : 147,897.75 = 69,321.94 : x
  2. Step 2: Convert to fraction form
    98,846.50/147,897.75 = 69,321.94/x
  3. Step 3: Cross multiply
    98,846.50x = 147,897.75 × 69,321.94
  4. Step 4: Simplify right side
    98,846.50x = 10,252,558,951.64
  5. Step 5: Solve for x
    x = 10,252,558,951.64/98,846.50
  6. Step 6: Final answer
    x = 103,722.02

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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.