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Finding the Fourth Proportional to 178,368.32, 267,549.78 and 43,433.48

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Solution

The fourth proportional to 178,368.32, 267,549.78 and 43,433.48 is: 65,149.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,368.32 : 267,549.78 = 43,433.48 : x
  2. Step 2: Convert to fraction form
    178,368.32/267,549.78 = 43,433.48/x
  3. Step 3: Cross multiply
    178,368.32x = 267,549.78 × 43,433.48
  4. Step 4: Simplify right side
    178,368.32x = 11,620,618,018.63
  5. Step 5: Solve for x
    x = 11,620,618,018.63/178,368.32
  6. Step 6: Final answer
    x = 65,149.56

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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.