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Finding the Fourth Proportional to 223,783.56, 308,820.60 and 123,181.56

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Solution

The fourth proportional to 223,783.56, 308,820.60 and 123,181.56 is: 169,990.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,783.56 : 308,820.60 = 123,181.56 : x
  2. Step 2: Convert to fraction form
    223,783.56/308,820.60 = 123,181.56/x
  3. Step 3: Cross multiply
    223,783.56x = 308,820.60 × 123,181.56
  4. Step 4: Simplify right side
    223,783.56x = 38,041,003,268.14
  5. Step 5: Solve for x
    x = 38,041,003,268.14/223,783.56
  6. Step 6: Final answer
    x = 169,990.16

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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.