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Finding the Fourth Proportional to 123,696.54, 170,703.72 and 75,932.46

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Solution

The fourth proportional to 123,696.54, 170,703.72 and 75,932.46 is: 104,788.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,696.54 : 170,703.72 = 75,932.46 : x
  2. Step 2: Convert to fraction form
    123,696.54/170,703.72 = 75,932.46/x
  3. Step 3: Cross multiply
    123,696.54x = 170,703.72 × 75,932.46
  4. Step 4: Simplify right side
    123,696.54x = 12,961,953,390.75
  5. Step 5: Solve for x
    x = 12,961,953,390.75/123,696.54
  6. Step 6: Final answer
    x = 104,788.33

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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.