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Finding the Fourth Proportional to 303,280.65, 454,819.32 and 100,830.06

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Solution

The fourth proportional to 303,280.65, 454,819.32 and 100,830.06 is: 151,211.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,280.65 : 454,819.32 = 100,830.06 : x
  2. Step 2: Convert to fraction form
    303,280.65/454,819.32 = 100,830.06/x
  3. Step 3: Cross multiply
    303,280.65x = 454,819.32 × 100,830.06
  4. Step 4: Simplify right side
    303,280.65x = 45,859,459,324.76
  5. Step 5: Solve for x
    x = 45,859,459,324.76/303,280.65
  6. Step 6: Final answer
    x = 151,211.29

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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.