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Finding the Fourth Proportional to 122,281.98, 183,449.43 and 38,040.63

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Solution

The fourth proportional to 122,281.98, 183,449.43 and 38,040.63 is: 57,069.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,281.98 : 183,449.43 = 38,040.63 : x
  2. Step 2: Convert to fraction form
    122,281.98/183,449.43 = 38,040.63/x
  3. Step 3: Cross multiply
    122,281.98x = 183,449.43 × 38,040.63
  4. Step 4: Simplify right side
    122,281.98x = 6,978,531,890.34
  5. Step 5: Solve for x
    x = 6,978,531,890.34/122,281.98
  6. Step 6: Final answer
    x = 57,069.18

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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.