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Finding the Fourth Proportional to 222,505.32, 307,054.98 and 121,903.08

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Solution

The fourth proportional to 222,505.32, 307,054.98 and 121,903.08 is: 168,224.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,505.32 : 307,054.98 = 121,903.08 : x
  2. Step 2: Convert to fraction form
    222,505.32/307,054.98 = 121,903.08/x
  3. Step 3: Cross multiply
    222,505.32x = 307,054.98 × 121,903.08
  4. Step 4: Simplify right side
    222,505.32x = 37,430,947,791.34
  5. Step 5: Solve for x
    x = 37,430,947,791.34/222,505.32
  6. Step 6: Final answer
    x = 168,224.96

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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.