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Finding the Fourth Proportional to 178,422.96, 267,630.75 and 43,487.80

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Solution

The fourth proportional to 178,422.96, 267,630.75 and 43,487.80 is: 65,230.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,422.96 : 267,630.75 = 43,487.80 : x
  2. Step 2: Convert to fraction form
    178,422.96/267,630.75 = 43,487.80/x
  3. Step 3: Cross multiply
    178,422.96x = 267,630.75 × 43,487.80
  4. Step 4: Simplify right side
    178,422.96x = 11,638,671,860.77
  5. Step 5: Solve for x
    x = 11,638,671,860.77/178,422.96
  6. Step 6: Final answer
    x = 65,230.80

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1.5x scale

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.