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Finding the Fourth Proportional to 87,334.48, 120,516 and 51,526

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Solution

The fourth proportional to 87,334.48, 120,516 and 51,526 is: 71,102.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,334.48 : 120,516 = 51,526 : x
  2. Step 2: Convert to fraction form
    87,334.48/120,516 = 51,526/x
  3. Step 3: Cross multiply
    87,334.48x = 120,516 × 51,526
  4. Step 4: Simplify right side
    87,334.48x = 6,209,707,416
  5. Step 5: Solve for x
    x = 6,209,707,416/87,334.48
  6. Step 6: Final answer
    x = 71,102.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.