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Finding the Fourth Proportional to 178,438.79, 267,573.42 and 103,581.89

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Solution

The fourth proportional to 178,438.79, 267,573.42 and 103,581.89 is: 155,323.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,438.79 : 267,573.42 = 103,581.89 : x
  2. Step 2: Convert to fraction form
    178,438.79/267,573.42 = 103,581.89/x
  3. Step 3: Cross multiply
    178,438.79x = 267,573.42 × 103,581.89
  4. Step 4: Simplify right side
    178,438.79x = 27,715,759,219.50
  5. Step 5: Solve for x
    x = 27,715,759,219.50/178,438.79
  6. Step 6: Final answer
    x = 155,323.63

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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.