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Finding the Fourth Proportional to 317,857.80, 476,734.30 and 104,628.50

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Solution

The fourth proportional to 317,857.80, 476,734.30 and 104,628.50 is: 156,925.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,857.80 : 476,734.30 = 104,628.50 : x
  2. Step 2: Convert to fraction form
    317,857.80/476,734.30 = 104,628.50/x
  3. Step 3: Cross multiply
    317,857.80x = 476,734.30 × 104,628.50
  4. Step 4: Simplify right side
    317,857.80x = 49,879,994,707.55
  5. Step 5: Solve for x
    x = 49,879,994,707.55/317,857.80
  6. Step 6: Final answer
    x = 156,925.50

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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.