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Finding the Fourth Proportional to 69,897.30, 104,943.15 and 43,653.30

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Solution

The fourth proportional to 69,897.30, 104,943.15 and 43,653.30 is: 65,540.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,897.30 : 104,943.15 = 43,653.30 : x
  2. Step 2: Convert to fraction form
    69,897.30/104,943.15 = 43,653.30/x
  3. Step 3: Cross multiply
    69,897.30x = 104,943.15 × 43,653.30
  4. Step 4: Simplify right side
    69,897.30x = 4,581,114,809.90
  5. Step 5: Solve for x
    x = 4,581,114,809.90/69,897.30
  6. Step 6: Final answer
    x = 65,540.65

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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.