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Finding the Fourth Proportional to 122,984.60, 184,476.90 and 107,432.60

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Solution

The fourth proportional to 122,984.60, 184,476.90 and 107,432.60 is: 161,148.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,984.60 : 184,476.90 = 107,432.60 : x
  2. Step 2: Convert to fraction form
    122,984.60/184,476.90 = 107,432.60/x
  3. Step 3: Cross multiply
    122,984.60x = 184,476.90 × 107,432.60
  4. Step 4: Simplify right side
    122,984.60x = 19,818,833,006.94
  5. Step 5: Solve for x
    x = 19,818,833,006.94/122,984.60
  6. Step 6: Final answer
    x = 161,148.90

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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.