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Finding the Fourth Proportional to 177,928.40, 267,043.80 and 72,822.80

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Solution

The fourth proportional to 177,928.40, 267,043.80 and 72,822.80 is: 109,296.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,928.40 : 267,043.80 = 72,822.80 : x
  2. Step 2: Convert to fraction form
    177,928.40/267,043.80 = 72,822.80/x
  3. Step 3: Cross multiply
    177,928.40x = 267,043.80 × 72,822.80
  4. Step 4: Simplify right side
    177,928.40x = 19,446,877,238.64
  5. Step 5: Solve for x
    x = 19,446,877,238.64/177,928.40
  6. Step 6: Final answer
    x = 109,296.08

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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.