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Finding the Fourth Proportional to 202,990.61, 304,402.65 and 60,785.79

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Solution

The fourth proportional to 202,990.61, 304,402.65 and 60,785.79 is: 91,153.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,990.61 : 304,402.65 = 60,785.79 : x
  2. Step 2: Convert to fraction form
    202,990.61/304,402.65 = 60,785.79/x
  3. Step 3: Cross multiply
    202,990.61x = 304,402.65 × 60,785.79
  4. Step 4: Simplify right side
    202,990.61x = 18,503,355,558.34
  5. Step 5: Solve for x
    x = 18,503,355,558.34/202,990.61
  6. Step 6: Final answer
    x = 91,153.75

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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.