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Finding the Fourth Proportional to 222,855.76, 307,563.04 and 127,376.16

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Solution

The fourth proportional to 222,855.76, 307,563.04 and 127,376.16 is: 175,791.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,855.76 : 307,563.04 = 127,376.16 : x
  2. Step 2: Convert to fraction form
    222,855.76/307,563.04 = 127,376.16/x
  3. Step 3: Cross multiply
    222,855.76x = 307,563.04 × 127,376.16
  4. Step 4: Simplify right side
    222,855.76x = 39,176,198,993.13
  5. Step 5: Solve for x
    x = 39,176,198,993.13/222,855.76
  6. Step 6: Final answer
    x = 175,791.73

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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.