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Finding the Fourth Proportional to 103,805.64, 143,252.28 and 58,484.34

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Solution

The fourth proportional to 103,805.64, 143,252.28 and 58,484.34 is: 80,708.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,805.64 : 143,252.28 = 58,484.34 : x
  2. Step 2: Convert to fraction form
    103,805.64/143,252.28 = 58,484.34/x
  3. Step 3: Cross multiply
    103,805.64x = 143,252.28 × 58,484.34
  4. Step 4: Simplify right side
    103,805.64x = 8,378,015,049.30
  5. Step 5: Solve for x
    x = 8,378,015,049.30/103,805.64
  6. Step 6: Final answer
    x = 80,708.67

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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.