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Finding the Fourth Proportional to 178,220.40, 267,330.60 and 73,114.80

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Solution

The fourth proportional to 178,220.40, 267,330.60 and 73,114.80 is: 109,672.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,220.40 : 267,330.60 = 73,114.80 : x
  2. Step 2: Convert to fraction form
    178,220.40/267,330.60 = 73,114.80/x
  3. Step 3: Cross multiply
    178,220.40x = 267,330.60 × 73,114.80
  4. Step 4: Simplify right side
    178,220.40x = 19,545,823,352.88
  5. Step 5: Solve for x
    x = 19,545,823,352.88/178,220.40
  6. Step 6: Final answer
    x = 109,672.20

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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.