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Finding the Fourth Proportional to 475,039.60, 712,559.44 and 120,054.64

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Solution

The fourth proportional to 475,039.60, 712,559.44 and 120,054.64 is: 180,081.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,039.60 : 712,559.44 = 120,054.64 : x
  2. Step 2: Convert to fraction form
    475,039.60/712,559.44 = 120,054.64/x
  3. Step 3: Cross multiply
    475,039.60x = 712,559.44 × 120,054.64
  4. Step 4: Simplify right side
    475,039.60x = 85,546,067,047.80
  5. Step 5: Solve for x
    x = 85,546,067,047.80/475,039.60
  6. Step 6: Final answer
    x = 180,081.97

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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.