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Finding the Fourth Proportional to 123,407.89, 185,111.86 and 44,522.09

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Solution

The fourth proportional to 123,407.89, 185,111.86 and 44,522.09 is: 66,783.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,407.89 : 185,111.86 = 44,522.09 : x
  2. Step 2: Convert to fraction form
    123,407.89/185,111.86 = 44,522.09/x
  3. Step 3: Cross multiply
    123,407.89x = 185,111.86 × 44,522.09
  4. Step 4: Simplify right side
    123,407.89x = 8,241,566,890.99
  5. Step 5: Solve for x
    x = 8,241,566,890.99/123,407.89
  6. Step 6: Final answer
    x = 66,783.14

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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.