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Finding the Fourth Proportional to 68,074.40, 93,914 and 49,170.08

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Solution

The fourth proportional to 68,074.40, 93,914 and 49,170.08 is: 67,834.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,074.40 : 93,914 = 49,170.08 : x
  2. Step 2: Convert to fraction form
    68,074.40/93,914 = 49,170.08/x
  3. Step 3: Cross multiply
    68,074.40x = 93,914 × 49,170.08
  4. Step 4: Simplify right side
    68,074.40x = 4,617,758,893.12
  5. Step 5: Solve for x
    x = 4,617,758,893.12/68,074.40
  6. Step 6: Final answer
    x = 67,834.00

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Why These Related Problems?

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