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Finding the Fourth Proportional to 69,312.53, 103,896.43 and 50,291.21

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Solution

The fourth proportional to 69,312.53, 103,896.43 and 50,291.21 is: 75,384.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,312.53 : 103,896.43 = 50,291.21 : x
  2. Step 2: Convert to fraction form
    69,312.53/103,896.43 = 50,291.21/x
  3. Step 3: Cross multiply
    69,312.53x = 103,896.43 × 50,291.21
  4. Step 4: Simplify right side
    69,312.53x = 5,225,076,534.17
  5. Step 5: Solve for x
    x = 5,225,076,534.17/69,312.53
  6. Step 6: Final answer
    x = 75,384.31

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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.