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Finding the Fourth Proportional to 69,903.09, 96,468.68 and 39,687.41

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Solution

The fourth proportional to 69,903.09, 96,468.68 and 39,687.41 is: 54,770.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,903.09 : 96,468.68 = 39,687.41 : x
  2. Step 2: Convert to fraction form
    69,903.09/96,468.68 = 39,687.41/x
  3. Step 3: Cross multiply
    69,903.09x = 96,468.68 × 39,687.41
  4. Step 4: Simplify right side
    69,903.09x = 3,828,592,395.71
  5. Step 5: Solve for x
    x = 3,828,592,395.71/69,903.09
  6. Step 6: Final answer
    x = 54,770.00

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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.