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Finding the Fourth Proportional to 69,592.37, 104,384.77 and 42,943.43

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Solution

The fourth proportional to 69,592.37, 104,384.77 and 42,943.43 is: 64,412.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,592.37 : 104,384.77 = 42,943.43 : x
  2. Step 2: Convert to fraction form
    69,592.37/104,384.77 = 42,943.43/x
  3. Step 3: Cross multiply
    69,592.37x = 104,384.77 × 42,943.43
  4. Step 4: Simplify right side
    69,592.37x = 4,482,640,217.16
  5. Step 5: Solve for x
    x = 4,482,640,217.16/69,592.37
  6. Step 6: Final answer
    x = 64,412.82

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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.