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Finding the Fourth Proportional to 122,259.68, 183,350.64 and 47,374.64

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Solution

The fourth proportional to 122,259.68, 183,350.64 and 47,374.64 is: 71,046.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,259.68 : 183,350.64 = 47,374.64 : x
  2. Step 2: Convert to fraction form
    122,259.68/183,350.64 = 47,374.64/x
  3. Step 3: Cross multiply
    122,259.68x = 183,350.64 × 47,374.64
  4. Step 4: Simplify right side
    122,259.68x = 8,686,170,563.77
  5. Step 5: Solve for x
    x = 8,686,170,563.77/122,259.68
  6. Step 6: Final answer
    x = 71,046.89

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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.