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Finding the Fourth Proportional to 103,670.46, 143,063.46 and 58,348.44

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Solution

The fourth proportional to 103,670.46, 143,063.46 and 58,348.44 is: 80,519.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,670.46 : 143,063.46 = 58,348.44 : x
  2. Step 2: Convert to fraction form
    103,670.46/143,063.46 = 58,348.44/x
  3. Step 3: Cross multiply
    103,670.46x = 143,063.46 × 58,348.44
  4. Step 4: Simplify right side
    103,670.46x = 8,347,529,712.00
  5. Step 5: Solve for x
    x = 8,347,529,712.00/103,670.46
  6. Step 6: Final answer
    x = 80,519.85

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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.