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Finding the Fourth Proportional to 69,873.84, 96,376.50 and 67,559.40

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Solution

The fourth proportional to 69,873.84, 96,376.50 and 67,559.40 is: 93,184.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,873.84 : 96,376.50 = 67,559.40 : x
  2. Step 2: Convert to fraction form
    69,873.84/96,376.50 = 67,559.40/x
  3. Step 3: Cross multiply
    69,873.84x = 96,376.50 × 67,559.40
  4. Step 4: Simplify right side
    69,873.84x = 6,511,138,514.10
  5. Step 5: Solve for x
    x = 6,511,138,514.10/69,873.84
  6. Step 6: Final answer
    x = 93,184.21

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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.