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Finding the Fourth Proportional to 181,570.50, 272,399.49 and 56,911.50

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Solution

The fourth proportional to 181,570.50, 272,399.49 and 56,911.50 is: 85,380.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,570.50 : 272,399.49 = 56,911.50 : x
  2. Step 2: Convert to fraction form
    181,570.50/272,399.49 = 56,911.50/x
  3. Step 3: Cross multiply
    181,570.50x = 272,399.49 × 56,911.50
  4. Step 4: Simplify right side
    181,570.50x = 15,502,663,575.14
  5. Step 5: Solve for x
    x = 15,502,663,575.14/181,570.50
  6. Step 6: Final answer
    x = 85,380.96

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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.