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Finding the Fourth Proportional to 104,735.40, 156,930.30 and 52,031.40

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Solution

The fourth proportional to 104,735.40, 156,930.30 and 52,031.40 is: 77,961.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,735.40 : 156,930.30 = 52,031.40 : x
  2. Step 2: Convert to fraction form
    104,735.40/156,930.30 = 52,031.40/x
  3. Step 3: Cross multiply
    104,735.40x = 156,930.30 × 52,031.40
  4. Step 4: Simplify right side
    104,735.40x = 8,165,303,211.42
  5. Step 5: Solve for x
    x = 8,165,303,211.42/104,735.40
  6. Step 6: Final answer
    x = 77,961.25

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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.