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Finding the Fourth Proportional to 222,782.94, 307,580.22 and 154,778.04

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Solution

The fourth proportional to 222,782.94, 307,580.22 and 154,778.04 is: 213,690.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,782.94 : 307,580.22 = 154,778.04 : x
  2. Step 2: Convert to fraction form
    222,782.94/307,580.22 = 154,778.04/x
  3. Step 3: Cross multiply
    222,782.94x = 307,580.22 × 154,778.04
  4. Step 4: Simplify right side
    222,782.94x = 47,606,663,594.37
  5. Step 5: Solve for x
    x = 47,606,663,594.37/222,782.94
  6. Step 6: Final answer
    x = 213,690.80

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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.