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Finding the Fourth Proportional to 223,666.44, 308,500.32 and 137,512.56

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Solution

The fourth proportional to 223,666.44, 308,500.32 and 137,512.56 is: 189,669.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,666.44 : 308,500.32 = 137,512.56 : x
  2. Step 2: Convert to fraction form
    223,666.44/308,500.32 = 137,512.56/x
  3. Step 3: Cross multiply
    223,666.44x = 308,500.32 × 137,512.56
  4. Step 4: Simplify right side
    223,666.44x = 42,422,668,764.02
  5. Step 5: Solve for x
    x = 42,422,668,764.02/223,666.44
  6. Step 6: Final answer
    x = 189,669.35

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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.