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Finding the Fourth Proportional to 70,757.00, 106,152.85 and 58,128.11

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Solution

The fourth proportional to 70,757.00, 106,152.85 and 58,128.11 is: 87,206.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,757.00 : 106,152.85 = 58,128.11 : x
  2. Step 2: Convert to fraction form
    70,757.00/106,152.85 = 58,128.11/x
  3. Step 3: Cross multiply
    70,757.00x = 106,152.85 × 58,128.11
  4. Step 4: Simplify right side
    70,757.00x = 6,170,463,865.53
  5. Step 5: Solve for x
    x = 6,170,463,865.53/70,757.00
  6. Step 6: Final answer
    x = 87,206.41

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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.