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Finding the Fourth Proportional to 317,218.60, 474,953.10 and 247,234.60

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Solution

The fourth proportional to 317,218.60, 474,953.10 and 247,234.60 is: 370,170.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,218.60 : 474,953.10 = 247,234.60 : x
  2. Step 2: Convert to fraction form
    317,218.60/474,953.10 = 247,234.60/x
  3. Step 3: Cross multiply
    317,218.60x = 474,953.10 × 247,234.60
  4. Step 4: Simplify right side
    317,218.60x = 117,424,839,697.26
  5. Step 5: Solve for x
    x = 117,424,839,697.26/317,218.60
  6. Step 6: Final answer
    x = 370,170.10

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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.