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Finding the Fourth Proportional to 71,810.88, 99,103.68 and 49,416

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Solution

The fourth proportional to 71,810.88, 99,103.68 and 49,416 is: 68,197.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,810.88 : 99,103.68 = 49,416 : x
  2. Step 2: Convert to fraction form
    71,810.88/99,103.68 = 49,416/x
  3. Step 3: Cross multiply
    71,810.88x = 99,103.68 × 49,416
  4. Step 4: Simplify right side
    71,810.88x = 4,897,307,450.88
  5. Step 5: Solve for x
    x = 4,897,307,450.88/71,810.88
  6. Step 6: Final answer
    x = 68,197.29

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.