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Finding the Fourth Proportional to 69,005.80, 103,314.30 and 62,007.40

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Solution

The fourth proportional to 69,005.80, 103,314.30 and 62,007.40 is: 92,836.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,005.80 : 103,314.30 = 62,007.40 : x
  2. Step 2: Convert to fraction form
    69,005.80/103,314.30 = 62,007.40/x
  3. Step 3: Cross multiply
    69,005.80x = 103,314.30 × 62,007.40
  4. Step 4: Simplify right side
    69,005.80x = 6,406,251,125.82
  5. Step 5: Solve for x
    x = 6,406,251,125.82/69,005.80
  6. Step 6: Final answer
    x = 92,836.42

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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.