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Finding the Fourth Proportional to 317,011.50, 475,590.12 and 103,786.29

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Solution

The fourth proportional to 317,011.50, 475,590.12 and 103,786.29 is: 155,703.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,011.50 : 475,590.12 = 103,786.29 : x
  2. Step 2: Convert to fraction form
    317,011.50/475,590.12 = 103,786.29/x
  3. Step 3: Cross multiply
    317,011.50x = 475,590.12 × 103,786.29
  4. Step 4: Simplify right side
    317,011.50x = 49,359,734,115.45
  5. Step 5: Solve for x
    x = 49,359,734,115.45/317,011.50
  6. Step 6: Final answer
    x = 155,703.29

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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.