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Finding the Fourth Proportional to 235,381.50, 353,072.25 and 69,169.50

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Solution

The fourth proportional to 235,381.50, 353,072.25 and 69,169.50 is: 103,754.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,381.50 : 353,072.25 = 69,169.50 : x
  2. Step 2: Convert to fraction form
    235,381.50/353,072.25 = 69,169.50/x
  3. Step 3: Cross multiply
    235,381.50x = 353,072.25 × 69,169.50
  4. Step 4: Simplify right side
    235,381.50x = 24,421,830,996.38
  5. Step 5: Solve for x
    x = 24,421,830,996.38/235,381.50
  6. Step 6: Final answer
    x = 103,754.25

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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.