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Finding the Fourth Proportional to 224,458.80, 309,751.20 and 122,486.28

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Solution

The fourth proportional to 224,458.80, 309,751.20 and 122,486.28 is: 169,030.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,458.80 : 309,751.20 = 122,486.28 : x
  2. Step 2: Convert to fraction form
    224,458.80/309,751.20 = 122,486.28/x
  3. Step 3: Cross multiply
    224,458.80x = 309,751.20 × 122,486.28
  4. Step 4: Simplify right side
    224,458.80x = 37,940,272,213.54
  5. Step 5: Solve for x
    x = 37,940,272,213.54/224,458.80
  6. Step 6: Final answer
    x = 169,030.01

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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.