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Finding the Fourth Proportional to 122,691, 184,079.70 and 60,405.24

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Solution

The fourth proportional to 122,691, 184,079.70 and 60,405.24 is: 90,629.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,691 : 184,079.70 = 60,405.24 : x
  2. Step 2: Convert to fraction form
    122,691/184,079.70 = 60,405.24/x
  3. Step 3: Cross multiply
    122,691x = 184,079.70 × 60,405.24
  4. Step 4: Simplify right side
    122,691x = 11,119,378,457.63
  5. Step 5: Solve for x
    x = 11,119,378,457.63/122,691
  6. Step 6: Final answer
    x = 90,629.13

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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.