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Finding the Fourth Proportional to 127,343.84, 190,743.06 and 67,182.26

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Solution

The fourth proportional to 127,343.84, 190,743.06 and 67,182.26 is: 100,629.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,343.84 : 190,743.06 = 67,182.26 : x
  2. Step 2: Convert to fraction form
    127,343.84/190,743.06 = 67,182.26/x
  3. Step 3: Cross multiply
    127,343.84x = 190,743.06 × 67,182.26
  4. Step 4: Simplify right side
    127,343.84x = 12,814,549,850.12
  5. Step 5: Solve for x
    x = 12,814,549,850.12/127,343.84
  6. Step 6: Final answer
    x = 100,629.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.