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Finding the Fourth Proportional to 202,336.80, 303,688.80 and 102,566.40

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Solution

The fourth proportional to 202,336.80, 303,688.80 and 102,566.40 is: 153,942.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,336.80 : 303,688.80 = 102,566.40 : x
  2. Step 2: Convert to fraction form
    202,336.80/303,688.80 = 102,566.40/x
  3. Step 3: Cross multiply
    202,336.80x = 303,688.80 × 102,566.40
  4. Step 4: Simplify right side
    202,336.80x = 31,148,266,936.32
  5. Step 5: Solve for x
    x = 31,148,266,936.32/202,336.80
  6. Step 6: Final answer
    x = 153,942.67

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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.