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Finding the Fourth Proportional to 474,979.60, 712,469.40 and 119,994.64

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Solution

The fourth proportional to 474,979.60, 712,469.40 and 119,994.64 is: 179,991.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,979.60 : 712,469.40 = 119,994.64 : x
  2. Step 2: Convert to fraction form
    474,979.60/712,469.40 = 119,994.64/x
  3. Step 3: Cross multiply
    474,979.60x = 712,469.40 × 119,994.64
  4. Step 4: Simplify right side
    474,979.60x = 85,492,509,164.02
  5. Step 5: Solve for x
    x = 85,492,509,164.02/474,979.60
  6. Step 6: Final answer
    x = 179,991.96

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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.