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Finding the Fourth Proportional to 123,661.10, 185,506.50 and 43,682.64

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Solution

The fourth proportional to 123,661.10, 185,506.50 and 43,682.64 is: 65,529.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,661.10 : 185,506.50 = 43,682.64 : x
  2. Step 2: Convert to fraction form
    123,661.10/185,506.50 = 43,682.64/x
  3. Step 3: Cross multiply
    123,661.10x = 185,506.50 × 43,682.64
  4. Step 4: Simplify right side
    123,661.10x = 8,103,413,657.16
  5. Step 5: Solve for x
    x = 8,103,413,657.16/123,661.10
  6. Step 6: Final answer
    x = 65,529.21

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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.