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Finding the Fourth Proportional to 123,696.39, 170,624.30 and 108,577.11

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Solution

The fourth proportional to 123,696.39, 170,624.30 and 108,577.11 is: 149,769.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,696.39 : 170,624.30 = 108,577.11 : x
  2. Step 2: Convert to fraction form
    123,696.39/170,624.30 = 108,577.11/x
  3. Step 3: Cross multiply
    123,696.39x = 170,624.30 × 108,577.11
  4. Step 4: Simplify right side
    123,696.39x = 18,525,892,846.89
  5. Step 5: Solve for x
    x = 18,525,892,846.89/123,696.39
  6. Step 6: Final answer
    x = 149,769.07

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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.