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Finding the Fourth Proportional to 127,952.78, 191,873.39 and 67,968.11

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Solution

The fourth proportional to 127,952.78, 191,873.39 and 67,968.11 is: 101,922.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,952.78 : 191,873.39 = 67,968.11 : x
  2. Step 2: Convert to fraction form
    127,952.78/191,873.39 = 67,968.11/x
  3. Step 3: Cross multiply
    127,952.78x = 191,873.39 × 67,968.11
  4. Step 4: Simplify right side
    127,952.78x = 13,041,271,677.59
  5. Step 5: Solve for x
    x = 13,041,271,677.59/127,952.78
  6. Step 6: Final answer
    x = 101,922.54

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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.