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Finding the Fourth Proportional to 303,091.10, 454,636.65 and 103,636.70

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Solution

The fourth proportional to 303,091.10, 454,636.65 and 103,636.70 is: 155,455.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,091.10 : 454,636.65 = 103,636.70 : x
  2. Step 2: Convert to fraction form
    303,091.10/454,636.65 = 103,636.70/x
  3. Step 3: Cross multiply
    303,091.10x = 454,636.65 × 103,636.70
  4. Step 4: Simplify right side
    303,091.10x = 47,117,042,105.06
  5. Step 5: Solve for x
    x = 47,117,042,105.06/303,091.10
  6. Step 6: Final answer
    x = 155,455.05

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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.