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Finding the Fourth Proportional to 389,338.26, 584,007.93 and 108,855.24

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Solution

The fourth proportional to 389,338.26, 584,007.93 and 108,855.24 is: 163,283.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,338.26 : 584,007.93 = 108,855.24 : x
  2. Step 2: Convert to fraction form
    389,338.26/584,007.93 = 108,855.24/x
  3. Step 3: Cross multiply
    389,338.26x = 584,007.93 × 108,855.24
  4. Step 4: Simplify right side
    389,338.26x = 63,572,323,382.05
  5. Step 5: Solve for x
    x = 63,572,323,382.05/389,338.26
  6. Step 6: Final answer
    x = 163,283.01

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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.