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Finding the Fourth Proportional to 104,100.60, 156,127.52 and 47,886.72

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Solution

The fourth proportional to 104,100.60, 156,127.52 and 47,886.72 is: 71,819.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,100.60 : 156,127.52 = 47,886.72 : x
  2. Step 2: Convert to fraction form
    104,100.60/156,127.52 = 47,886.72/x
  3. Step 3: Cross multiply
    104,100.60x = 156,127.52 × 47,886.72
  4. Step 4: Simplify right side
    104,100.60x = 7,476,434,595.10
  5. Step 5: Solve for x
    x = 7,476,434,595.10/104,100.60
  6. Step 6: Final answer
    x = 71,819.32

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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.