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Finding the Fourth Proportional to 103,687.72, 155,718.94 and 95,352.36

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Solution

The fourth proportional to 103,687.72, 155,718.94 and 95,352.36 is: 143,200.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,687.72 : 155,718.94 = 95,352.36 : x
  2. Step 2: Convert to fraction form
    103,687.72/155,718.94 = 95,352.36/x
  3. Step 3: Cross multiply
    103,687.72x = 155,718.94 × 95,352.36
  4. Step 4: Simplify right side
    103,687.72x = 14,848,168,425.70
  5. Step 5: Solve for x
    x = 14,848,168,425.70/103,687.72
  6. Step 6: Final answer
    x = 143,200.84

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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.