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Finding the Fourth Proportional to 123,448.60, 170,358.22 and 66,858.84

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Solution

The fourth proportional to 123,448.60, 170,358.22 and 66,858.84 is: 92,264.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,448.60 : 170,358.22 = 66,858.84 : x
  2. Step 2: Convert to fraction form
    123,448.60/170,358.22 = 66,858.84/x
  3. Step 3: Cross multiply
    123,448.60x = 170,358.22 × 66,858.84
  4. Step 4: Simplify right side
    123,448.60x = 11,389,952,973.66
  5. Step 5: Solve for x
    x = 11,389,952,973.66/123,448.60
  6. Step 6: Final answer
    x = 92,264.74

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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.