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Finding the Fourth Proportional to 317,439, 476,158.50 and 95,823

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Solution

The fourth proportional to 317,439, 476,158.50 and 95,823 is: 143,734.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,439 : 476,158.50 = 95,823 : x
  2. Step 2: Convert to fraction form
    317,439/476,158.50 = 95,823/x
  3. Step 3: Cross multiply
    317,439x = 476,158.50 × 95,823
  4. Step 4: Simplify right side
    317,439x = 45,626,935,945.50
  5. Step 5: Solve for x
    x = 45,626,935,945.50/317,439
  6. Step 6: Final answer
    x = 143,734.50

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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.