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Finding the Fourth Proportional to 173,885.90, 260,828.85 and 134,519.90

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Solution

The fourth proportional to 173,885.90, 260,828.85 and 134,519.90 is: 201,779.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,885.90 : 260,828.85 = 134,519.90 : x
  2. Step 2: Convert to fraction form
    173,885.90/260,828.85 = 134,519.90/x
  3. Step 3: Cross multiply
    173,885.90x = 260,828.85 × 134,519.90
  4. Step 4: Simplify right side
    173,885.90x = 35,086,670,819.12
  5. Step 5: Solve for x
    x = 35,086,670,819.12/173,885.90
  6. Step 6: Final answer
    x = 201,779.85

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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.