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Finding the Fourth Proportional to 103,622.63, 142,999.22 and 58,910.63

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Solution

The fourth proportional to 103,622.63, 142,999.22 and 58,910.63 is: 81,296.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,622.63 : 142,999.22 = 58,910.63 : x
  2. Step 2: Convert to fraction form
    103,622.63/142,999.22 = 58,910.63/x
  3. Step 3: Cross multiply
    103,622.63x = 142,999.22 × 58,910.63
  4. Step 4: Simplify right side
    103,622.63x = 8,424,173,571.99
  5. Step 5: Solve for x
    x = 8,424,173,571.99/103,622.63
  6. Step 6: Final answer
    x = 81,296.66

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1.5x scale

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.