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Finding the Fourth Proportional to 224,071.80, 309,226.90 and 122,105.65

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Solution

The fourth proportional to 224,071.80, 309,226.90 and 122,105.65 is: 168,510.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,071.80 : 309,226.90 = 122,105.65 : x
  2. Step 2: Convert to fraction form
    224,071.80/309,226.90 = 122,105.65/x
  3. Step 3: Cross multiply
    224,071.80x = 309,226.90 × 122,105.65
  4. Step 4: Simplify right side
    224,071.80x = 37,758,351,621.99
  5. Step 5: Solve for x
    x = 37,758,351,621.99/224,071.80
  6. Step 6: Final answer
    x = 168,510.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.