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Finding the Fourth Proportional to 317,338.40, 476,029.20 and 92,698.40

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Solution

The fourth proportional to 317,338.40, 476,029.20 and 92,698.40 is: 139,053.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,338.40 : 476,029.20 = 92,698.40 : x
  2. Step 2: Convert to fraction form
    317,338.40/476,029.20 = 92,698.40/x
  3. Step 3: Cross multiply
    317,338.40x = 476,029.20 × 92,698.40
  4. Step 4: Simplify right side
    317,338.40x = 44,127,145,193.28
  5. Step 5: Solve for x
    x = 44,127,145,193.28/317,338.40
  6. Step 6: Final answer
    x = 139,053.91

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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.