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Finding the Fourth Proportional to 161,887.41, 242,813.70 and 43,570.71

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Solution

The fourth proportional to 161,887.41, 242,813.70 and 43,570.71 is: 65,351.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,887.41 : 242,813.70 = 43,570.71 : x
  2. Step 2: Convert to fraction form
    161,887.41/242,813.70 = 43,570.71/x
  3. Step 3: Cross multiply
    161,887.41x = 242,813.70 × 43,570.71
  4. Step 4: Simplify right side
    161,887.41x = 10,579,565,306.73
  5. Step 5: Solve for x
    x = 10,579,565,306.73/161,887.41
  6. Step 6: Final answer
    x = 65,351.38

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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.