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Finding the Fourth Proportional to 403,149.35, 604,811.54 and 122,659.31

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Solution

The fourth proportional to 403,149.35, 604,811.54 and 122,659.31 is: 184,015.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,149.35 : 604,811.54 = 122,659.31 : x
  2. Step 2: Convert to fraction form
    403,149.35/604,811.54 = 122,659.31/x
  3. Step 3: Cross multiply
    403,149.35x = 604,811.54 × 122,659.31
  4. Step 4: Simplify right side
    403,149.35x = 74,185,767,995.11
  5. Step 5: Solve for x
    x = 74,185,767,995.11/403,149.35
  6. Step 6: Final answer
    x = 184,015.60

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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.