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Finding the Fourth Proportional to 202,098.94, 303,064.98 and 68,989.92

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Solution

The fourth proportional to 202,098.94, 303,064.98 and 68,989.92 is: 103,456.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,098.94 : 303,064.98 = 68,989.92 : x
  2. Step 2: Convert to fraction form
    202,098.94/303,064.98 = 68,989.92/x
  3. Step 3: Cross multiply
    202,098.94x = 303,064.98 × 68,989.92
  4. Step 4: Simplify right side
    202,098.94x = 20,908,428,725.00
  5. Step 5: Solve for x
    x = 20,908,428,725.00/202,098.94
  6. Step 6: Final answer
    x = 103,456.40

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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.