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Finding the Fourth Proportional to 127,052.71, 190,425.22 and 70,833.12

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Solution

The fourth proportional to 127,052.71, 190,425.22 and 70,833.12 is: 106,163.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,052.71 : 190,425.22 = 70,833.12 : x
  2. Step 2: Convert to fraction form
    127,052.71/190,425.22 = 70,833.12/x
  3. Step 3: Cross multiply
    127,052.71x = 190,425.22 × 70,833.12
  4. Step 4: Simplify right side
    127,052.71x = 13,488,412,459.29
  5. Step 5: Solve for x
    x = 13,488,412,459.29/127,052.71
  6. Step 6: Final answer
    x = 106,163.91

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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.