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Finding the Fourth Proportional to 231,485.91, 347,262.13 and 71,574.32

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Solution

The fourth proportional to 231,485.91, 347,262.13 and 71,574.32 is: 107,371.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,485.91 : 347,262.13 = 71,574.32 : x
  2. Step 2: Convert to fraction form
    231,485.91/347,262.13 = 71,574.32/x
  3. Step 3: Cross multiply
    231,485.91x = 347,262.13 × 71,574.32
  4. Step 4: Simplify right side
    231,485.91x = 24,855,048,901.26
  5. Step 5: Solve for x
    x = 24,855,048,901.26/231,485.91
  6. Step 6: Final answer
    x = 107,371.76

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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.