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Finding the Fourth Proportional to 188,553.72, 260,166.76 and 105,770.32

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Solution

The fourth proportional to 188,553.72, 260,166.76 and 105,770.32 is: 145,942.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,553.72 : 260,166.76 = 105,770.32 : x
  2. Step 2: Convert to fraction form
    188,553.72/260,166.76 = 105,770.32/x
  3. Step 3: Cross multiply
    188,553.72x = 260,166.76 × 105,770.32
  4. Step 4: Simplify right side
    188,553.72x = 27,517,921,458.56
  5. Step 5: Solve for x
    x = 27,517,921,458.56/188,553.72
  6. Step 6: Final answer
    x = 145,942.08

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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.