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Finding the Fourth Proportional to 230,364.56, 345,646.68 and 112,138.64

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Solution

The fourth proportional to 230,364.56, 345,646.68 and 112,138.64 is: 168,256.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,364.56 : 345,646.68 = 112,138.64 : x
  2. Step 2: Convert to fraction form
    230,364.56/345,646.68 = 112,138.64/x
  3. Step 3: Cross multiply
    230,364.56x = 345,646.68 × 112,138.64
  4. Step 4: Simplify right side
    230,364.56x = 38,760,348,615.72
  5. Step 5: Solve for x
    x = 38,760,348,615.72/230,364.56
  6. Step 6: Final answer
    x = 168,256.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.