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Finding the Fourth Proportional to 155,266.80, 232,812.71 and 54,018.42

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Solution

The fourth proportional to 155,266.80, 232,812.71 and 54,018.42 is: 80,997.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,266.80 : 232,812.71 = 54,018.42 : x
  2. Step 2: Convert to fraction form
    155,266.80/232,812.71 = 54,018.42/x
  3. Step 3: Cross multiply
    155,266.80x = 232,812.71 × 54,018.42
  4. Step 4: Simplify right side
    155,266.80x = 12,576,174,750.12
  5. Step 5: Solve for x
    x = 12,576,174,750.12/155,266.80
  6. Step 6: Final answer
    x = 80,997.19

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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.