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Finding the Fourth Proportional to 123,704.10, 185,569.38 and 39,444.39

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Solution

The fourth proportional to 123,704.10, 185,569.38 and 39,444.39 is: 59,170.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,704.10 : 185,569.38 = 39,444.39 : x
  2. Step 2: Convert to fraction form
    123,704.10/185,569.38 = 39,444.39/x
  3. Step 3: Cross multiply
    123,704.10x = 185,569.38 × 39,444.39
  4. Step 4: Simplify right side
    123,704.10x = 7,319,670,996.78
  5. Step 5: Solve for x
    x = 7,319,670,996.78/123,704.10
  6. Step 6: Final answer
    x = 59,170.80

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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.