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Finding the Fourth Proportional to 222,991.65, 307,718.64 and 127,504.60

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Solution

The fourth proportional to 222,991.65, 307,718.64 and 127,504.60 is: 175,950.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,991.65 : 307,718.64 = 127,504.60 : x
  2. Step 2: Convert to fraction form
    222,991.65/307,718.64 = 127,504.60/x
  3. Step 3: Cross multiply
    222,991.65x = 307,718.64 × 127,504.60
  4. Step 4: Simplify right side
    222,991.65x = 39,235,542,105.74
  5. Step 5: Solve for x
    x = 39,235,542,105.74/222,991.65
  6. Step 6: Final answer
    x = 175,950.72

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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.