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Finding the Fourth Proportional to 122,765.10, 184,265.10 and 63,643.20

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Solution

The fourth proportional to 122,765.10, 184,265.10 and 63,643.20 is: 95,525.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,765.10 : 184,265.10 = 63,643.20 : x
  2. Step 2: Convert to fraction form
    122,765.10/184,265.10 = 63,643.20/x
  3. Step 3: Cross multiply
    122,765.10x = 184,265.10 × 63,643.20
  4. Step 4: Simplify right side
    122,765.10x = 11,727,220,612.32
  5. Step 5: Solve for x
    x = 11,727,220,612.32/122,765.10
  6. Step 6: Final answer
    x = 95,525.69

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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.