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Finding the Fourth Proportional to 178,759.44, 267,730.74 and 85,330.80

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Solution

The fourth proportional to 178,759.44, 267,730.74 and 85,330.80 is: 127,801.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,759.44 : 267,730.74 = 85,330.80 : x
  2. Step 2: Convert to fraction form
    178,759.44/267,730.74 = 85,330.80/x
  3. Step 3: Cross multiply
    178,759.44x = 267,730.74 × 85,330.80
  4. Step 4: Simplify right side
    178,759.44x = 22,845,678,228.79
  5. Step 5: Solve for x
    x = 22,845,678,228.79/178,759.44
  6. Step 6: Final answer
    x = 127,801.24

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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.