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Finding the Fourth Proportional to 230,405.28, 345,607.60 and 64,193.28

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Solution

The fourth proportional to 230,405.28, 345,607.60 and 64,193.28 is: 96,289.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,405.28 : 345,607.60 = 64,193.28 : x
  2. Step 2: Convert to fraction form
    230,405.28/345,607.60 = 64,193.28/x
  3. Step 3: Cross multiply
    230,405.28x = 345,607.60 × 64,193.28
  4. Step 4: Simplify right side
    230,405.28x = 22,185,685,436.93
  5. Step 5: Solve for x
    x = 22,185,685,436.93/230,405.28
  6. Step 6: Final answer
    x = 96,289.83

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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.