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Finding the Fourth Proportional to 127,843.60, 191,995.80 and 123,696.40

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Solution

The fourth proportional to 127,843.60, 191,995.80 and 123,696.40 is: 185,767.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,843.60 : 191,995.80 = 123,696.40 : x
  2. Step 2: Convert to fraction form
    127,843.60/191,995.80 = 123,696.40/x
  3. Step 3: Cross multiply
    127,843.60x = 191,995.80 × 123,696.40
  4. Step 4: Simplify right side
    127,843.60x = 23,749,189,275.12
  5. Step 5: Solve for x
    x = 23,749,189,275.12/127,843.60
  6. Step 6: Final answer
    x = 185,767.53

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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.