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Finding the Fourth Proportional to 223,516.96, 308,445.36 and 122,914.24

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Solution

The fourth proportional to 223,516.96, 308,445.36 and 122,914.24 is: 169,617.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,516.96 : 308,445.36 = 122,914.24 : x
  2. Step 2: Convert to fraction form
    223,516.96/308,445.36 = 122,914.24/x
  3. Step 3: Cross multiply
    223,516.96x = 308,445.36 × 122,914.24
  4. Step 4: Simplify right side
    223,516.96x = 37,912,327,005.93
  5. Step 5: Solve for x
    x = 37,912,327,005.93/223,516.96
  6. Step 6: Final answer
    x = 169,617.23

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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.