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Finding the Fourth Proportional to 203,853.51, 305,659.52 and 61,655.68

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Solution

The fourth proportional to 203,853.51, 305,659.52 and 61,655.68 is: 92,447.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,853.51 : 305,659.52 = 61,655.68 : x
  2. Step 2: Convert to fraction form
    203,853.51/305,659.52 = 61,655.68/x
  3. Step 3: Cross multiply
    203,853.51x = 305,659.52 × 61,655.68
  4. Step 4: Simplify right side
    203,853.51x = 18,845,646,205.89
  5. Step 5: Solve for x
    x = 18,845,646,205.89/203,853.51
  6. Step 6: Final answer
    x = 92,447.00

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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.