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Finding the Fourth Proportional to 188,763.48, 260,504.31 and 108,204.39

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Solution

The fourth proportional to 188,763.48, 260,504.31 and 108,204.39 is: 149,328.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,763.48 : 260,504.31 = 108,204.39 : x
  2. Step 2: Convert to fraction form
    188,763.48/260,504.31 = 108,204.39/x
  3. Step 3: Cross multiply
    188,763.48x = 260,504.31 × 108,204.39
  4. Step 4: Simplify right side
    188,763.48x = 28,187,709,955.92
  5. Step 5: Solve for x
    x = 28,187,709,955.92/188,763.48
  6. Step 6: Final answer
    x = 149,328.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.