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Finding the Fourth Proportional to 122,719.10, 184,078.65 and 63,670.10

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Solution

The fourth proportional to 122,719.10, 184,078.65 and 63,670.10 is: 95,505.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,719.10 : 184,078.65 = 63,670.10 : x
  2. Step 2: Convert to fraction form
    122,719.10/184,078.65 = 63,670.10/x
  3. Step 3: Cross multiply
    122,719.10x = 184,078.65 × 63,670.10
  4. Step 4: Simplify right side
    122,719.10x = 11,720,306,053.37
  5. Step 5: Solve for x
    x = 11,720,306,053.37/122,719.10
  6. Step 6: Final answer
    x = 95,505.15

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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.