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Finding the Fourth Proportional to 347,040.08, 520,621.86 and 122,530.86

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Solution

The fourth proportional to 347,040.08, 520,621.86 and 122,530.86 is: 183,818.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,040.08 : 520,621.86 = 122,530.86 : x
  2. Step 2: Convert to fraction form
    347,040.08/520,621.86 = 122,530.86/x
  3. Step 3: Cross multiply
    347,040.08x = 520,621.86 × 122,530.86
  4. Step 4: Simplify right side
    347,040.08x = 63,792,244,240.60
  5. Step 5: Solve for x
    x = 63,792,244,240.60/347,040.08
  6. Step 6: Final answer
    x = 183,818.09

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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.