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Finding the Fourth Proportional to 422,521.62, 633,886.10 and 123,004.88

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Solution

The fourth proportional to 422,521.62, 633,886.10 and 123,004.88 is: 184,537.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,521.62 : 633,886.10 = 123,004.88 : x
  2. Step 2: Convert to fraction form
    422,521.62/633,886.10 = 123,004.88/x
  3. Step 3: Cross multiply
    422,521.62x = 633,886.10 × 123,004.88
  4. Step 4: Simplify right side
    422,521.62x = 77,971,083,409.96
  5. Step 5: Solve for x
    x = 77,971,083,409.96/422,521.62
  6. Step 6: Final answer
    x = 184,537.50

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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.