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Finding the Fourth Proportional to 127,305.96, 190,959.48 and 43,066.64

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Solution

The fourth proportional to 127,305.96, 190,959.48 and 43,066.64 is: 64,600.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,305.96 : 190,959.48 = 43,066.64 : x
  2. Step 2: Convert to fraction form
    127,305.96/190,959.48 = 43,066.64/x
  3. Step 3: Cross multiply
    127,305.96x = 190,959.48 × 43,066.64
  4. Step 4: Simplify right side
    127,305.96x = 8,223,982,224.95
  5. Step 5: Solve for x
    x = 8,223,982,224.95/127,305.96
  6. Step 6: Final answer
    x = 64,600.14

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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.