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Finding the Fourth Proportional to 103,144.68, 154,611.16 and 58,676.76

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Solution

The fourth proportional to 103,144.68, 154,611.16 and 58,676.76 is: 87,954.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,144.68 : 154,611.16 = 58,676.76 : x
  2. Step 2: Convert to fraction form
    103,144.68/154,611.16 = 58,676.76/x
  3. Step 3: Cross multiply
    103,144.68x = 154,611.16 × 58,676.76
  4. Step 4: Simplify right side
    103,144.68x = 9,072,081,928.64
  5. Step 5: Solve for x
    x = 9,072,081,928.64/103,144.68
  6. Step 6: Final answer
    x = 87,954.92

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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.