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Finding the Fourth Proportional to 317,606.21, 476,308.94 and 104,339.10

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Solution

The fourth proportional to 317,606.21, 476,308.94 and 104,339.10 is: 156,475.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,606.21 : 476,308.94 = 104,339.10 : x
  2. Step 2: Convert to fraction form
    317,606.21/476,308.94 = 104,339.10/x
  3. Step 3: Cross multiply
    317,606.21x = 476,308.94 × 104,339.10
  4. Step 4: Simplify right side
    317,606.21x = 49,697,645,599.86
  5. Step 5: Solve for x
    x = 49,697,645,599.86/317,606.21
  6. Step 6: Final answer
    x = 156,475.68

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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.