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Finding the Fourth Proportional to 222,103.32, 306,509.97 and 121,501.32

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Solution

The fourth proportional to 222,103.32, 306,509.97 and 121,501.32 is: 167,675.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,103.32 : 306,509.97 = 121,501.32 : x
  2. Step 2: Convert to fraction form
    222,103.32/306,509.97 = 121,501.32/x
  3. Step 3: Cross multiply
    222,103.32x = 306,509.97 × 121,501.32
  4. Step 4: Simplify right side
    222,103.32x = 37,241,365,948.16
  5. Step 5: Solve for x
    x = 37,241,365,948.16/222,103.32
  6. Step 6: Final answer
    x = 167,675.86

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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.