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Finding the Fourth Proportional to 127,991.16, 192,017.64 and 48,029.76

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Solution

The fourth proportional to 127,991.16, 192,017.64 and 48,029.76 is: 72,056.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,991.16 : 192,017.64 = 48,029.76 : x
  2. Step 2: Convert to fraction form
    127,991.16/192,017.64 = 48,029.76/x
  3. Step 3: Cross multiply
    127,991.16x = 192,017.64 × 48,029.76
  4. Step 4: Simplify right side
    127,991.16x = 9,222,561,164.97
  5. Step 5: Solve for x
    x = 9,222,561,164.97/127,991.16
  6. Step 6: Final answer
    x = 72,056.24

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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.