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Finding the Fourth Proportional to 216,877.38, 325,325.79 and 95,289.90

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Solution

The fourth proportional to 216,877.38, 325,325.79 and 95,289.90 is: 142,939.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,877.38 : 325,325.79 = 95,289.90 : x
  2. Step 2: Convert to fraction form
    216,877.38/325,325.79 = 95,289.90/x
  3. Step 3: Cross multiply
    216,877.38x = 325,325.79 × 95,289.90
  4. Step 4: Simplify right side
    216,877.38x = 31,000,261,996.52
  5. Step 5: Solve for x
    x = 31,000,261,996.52/216,877.38
  6. Step 6: Final answer
    x = 142,939.12

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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.