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Finding the Fourth Proportional to 530,271.28, 795,408.56 and 130,912.10

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Solution

The fourth proportional to 530,271.28, 795,408.56 and 130,912.10 is: 196,368.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,271.28 : 795,408.56 = 130,912.10 : x
  2. Step 2: Convert to fraction form
    530,271.28/795,408.56 = 130,912.10/x
  3. Step 3: Cross multiply
    530,271.28x = 795,408.56 × 130,912.10
  4. Step 4: Simplify right side
    530,271.28x = 104,128,603,789.68
  5. Step 5: Solve for x
    x = 104,128,603,789.68/530,271.28
  6. Step 6: Final answer
    x = 196,368.55

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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.