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Finding the Fourth Proportional to 171,011.60, 256,517.40 and 123,772.40

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Solution

The fourth proportional to 171,011.60, 256,517.40 and 123,772.40 is: 185,658.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,011.60 : 256,517.40 = 123,772.40 : x
  2. Step 2: Convert to fraction form
    171,011.60/256,517.40 = 123,772.40/x
  3. Step 3: Cross multiply
    171,011.60x = 256,517.40 × 123,772.40
  4. Step 4: Simplify right side
    171,011.60x = 31,749,774,239.76
  5. Step 5: Solve for x
    x = 31,749,774,239.76/171,011.60
  6. Step 6: Final answer
    x = 185,658.60

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.