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Finding the Fourth Proportional to 123,568.65, 170,532.09 and 69,858.63

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Solution

The fourth proportional to 123,568.65, 170,532.09 and 69,858.63 is: 96,409.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,568.65 : 170,532.09 = 69,858.63 : x
  2. Step 2: Convert to fraction form
    123,568.65/170,532.09 = 69,858.63/x
  3. Step 3: Cross multiply
    123,568.65x = 170,532.09 × 69,858.63
  4. Step 4: Simplify right side
    123,568.65x = 11,913,138,178.44
  5. Step 5: Solve for x
    x = 11,913,138,178.44/123,568.65
  6. Step 6: Final answer
    x = 96,409.07

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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.