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Finding the Fourth Proportional to 127,079.76, 190,619.68 and 43,973.76

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Solution

The fourth proportional to 127,079.76, 190,619.68 and 43,973.76 is: 65,960.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,079.76 : 190,619.68 = 43,973.76 : x
  2. Step 2: Convert to fraction form
    127,079.76/190,619.68 = 43,973.76/x
  3. Step 3: Cross multiply
    127,079.76x = 190,619.68 × 43,973.76
  4. Step 4: Simplify right side
    127,079.76x = 8,382,264,059.60
  5. Step 5: Solve for x
    x = 8,382,264,059.60/127,079.76
  6. Step 6: Final answer
    x = 65,960.65

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Similar ratio
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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.