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Finding the Fourth Proportional to 82,898.34, 124,310.97 and 23,720.58

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Solution

The fourth proportional to 82,898.34, 124,310.97 and 23,720.58 is: 35,570.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,898.34 : 124,310.97 = 23,720.58 : x
  2. Step 2: Convert to fraction form
    82,898.34/124,310.97 = 23,720.58/x
  3. Step 3: Cross multiply
    82,898.34x = 124,310.97 × 23,720.58
  4. Step 4: Simplify right side
    82,898.34x = 2,948,728,308.76
  5. Step 5: Solve for x
    x = 2,948,728,308.76/82,898.34
  6. Step 6: Final answer
    x = 35,570.41

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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.