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Finding the Fourth Proportional to 126,584.64, 190,041.12 and 84,732.48

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Solution

The fourth proportional to 126,584.64, 190,041.12 and 84,732.48 is: 127,208.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,584.64 : 190,041.12 = 84,732.48 : x
  2. Step 2: Convert to fraction form
    126,584.64/190,041.12 = 84,732.48/x
  3. Step 3: Cross multiply
    126,584.64x = 190,041.12 × 84,732.48
  4. Step 4: Simplify right side
    126,584.64x = 16,102,655,399.58
  5. Step 5: Solve for x
    x = 16,102,655,399.58/126,584.64
  6. Step 6: Final answer
    x = 127,208.60

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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.