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Finding the Fourth Proportional to 273,023.60, 409,535.40 and 178,545.20

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Solution

The fourth proportional to 273,023.60, 409,535.40 and 178,545.20 is: 267,817.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,023.60 : 409,535.40 = 178,545.20 : x
  2. Step 2: Convert to fraction form
    273,023.60/409,535.40 = 178,545.20/x
  3. Step 3: Cross multiply
    273,023.60x = 409,535.40 × 178,545.20
  4. Step 4: Simplify right side
    273,023.60x = 73,120,579,900.08
  5. Step 5: Solve for x
    x = 73,120,579,900.08/273,023.60
  6. Step 6: Final answer
    x = 267,817.80

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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.