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Finding the Fourth Proportional to 69,878.32, 104,860.56 and 44,934.28

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Solution

The fourth proportional to 69,878.32, 104,860.56 and 44,934.28 is: 67,429.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,878.32 : 104,860.56 = 44,934.28 : x
  2. Step 2: Convert to fraction form
    69,878.32/104,860.56 = 44,934.28/x
  3. Step 3: Cross multiply
    69,878.32x = 104,860.56 × 44,934.28
  4. Step 4: Simplify right side
    69,878.32x = 4,711,833,764.00
  5. Step 5: Solve for x
    x = 4,711,833,764.00/69,878.32
  6. Step 6: Final answer
    x = 67,429.12

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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.