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Finding the Fourth Proportional to 350,453.30, 525,679.89 and 84,213.81

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Solution

The fourth proportional to 350,453.30, 525,679.89 and 84,213.81 is: 126,320.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,453.30 : 525,679.89 = 84,213.81 : x
  2. Step 2: Convert to fraction form
    350,453.30/525,679.89 = 84,213.81/x
  3. Step 3: Cross multiply
    350,453.30x = 525,679.89 × 84,213.81
  4. Step 4: Simplify right side
    350,453.30x = 44,269,506,061.48
  5. Step 5: Solve for x
    x = 44,269,506,061.48/350,453.30
  6. Step 6: Final answer
    x = 126,320.70

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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.