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Finding the Fourth Proportional to 122,989.96, 184,485 and 94,951

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Solution

The fourth proportional to 122,989.96, 184,485 and 94,951 is: 142,426.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,989.96 : 184,485 = 94,951 : x
  2. Step 2: Convert to fraction form
    122,989.96/184,485 = 94,951/x
  3. Step 3: Cross multiply
    122,989.96x = 184,485 × 94,951
  4. Step 4: Simplify right side
    122,989.96x = 17,517,035,235
  5. Step 5: Solve for x
    x = 17,517,035,235/122,989.96
  6. Step 6: Final answer
    x = 142,426.55

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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.