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Finding the Fourth Proportional to 434,918.72, 652,372.32 and 119,375.68

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Solution

The fourth proportional to 434,918.72, 652,372.32 and 119,375.68 is: 179,061.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,918.72 : 652,372.32 = 119,375.68 : x
  2. Step 2: Convert to fraction form
    434,918.72/652,372.32 = 119,375.68/x
  3. Step 3: Cross multiply
    434,918.72x = 652,372.32 × 119,375.68
  4. Step 4: Simplify right side
    434,918.72x = 77,877,389,313.18
  5. Step 5: Solve for x
    x = 77,877,389,313.18/434,918.72
  6. Step 6: Final answer
    x = 179,061.94

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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.