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Finding the Fourth Proportional to 123,193.84, 170,007.24 and 66,605.08

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Solution

The fourth proportional to 123,193.84, 170,007.24 and 66,605.08 is: 91,914.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,193.84 : 170,007.24 = 66,605.08 : x
  2. Step 2: Convert to fraction form
    123,193.84/170,007.24 = 66,605.08/x
  3. Step 3: Cross multiply
    123,193.84x = 170,007.24 × 66,605.08
  4. Step 4: Simplify right side
    123,193.84x = 11,323,345,820.78
  5. Step 5: Solve for x
    x = 11,323,345,820.78/123,193.84
  6. Step 6: Final answer
    x = 91,914.87

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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.