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Finding the Fourth Proportional to 316,366.83, 474,515.15 and 79,709.49

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Solution

The fourth proportional to 316,366.83, 474,515.15 and 79,709.49 is: 119,555.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,366.83 : 474,515.15 = 79,709.49 : x
  2. Step 2: Convert to fraction form
    316,366.83/474,515.15 = 79,709.49/x
  3. Step 3: Cross multiply
    316,366.83x = 474,515.15 × 79,709.49
  4. Step 4: Simplify right side
    316,366.83x = 37,823,360,205.23
  5. Step 5: Solve for x
    x = 37,823,360,205.23/316,366.83
  6. Step 6: Final answer
    x = 119,555.39

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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.