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Finding the Fourth Proportional to 317,339.86, 476,021.13 and 106,979.62

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Solution

The fourth proportional to 317,339.86, 476,021.13 and 106,979.62 is: 160,473.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,339.86 : 476,021.13 = 106,979.62 : x
  2. Step 2: Convert to fraction form
    317,339.86/476,021.13 = 106,979.62/x
  3. Step 3: Cross multiply
    317,339.86x = 476,021.13 × 106,979.62
  4. Step 4: Simplify right side
    317,339.86x = 50,924,559,599.37
  5. Step 5: Solve for x
    x = 50,924,559,599.37/317,339.86
  6. Step 6: Final answer
    x = 160,473.25

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1.5x scale

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.