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Finding the Fourth Proportional to 47,100.96, 70,819.80 and 43,448.40

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Solution

The fourth proportional to 47,100.96, 70,819.80 and 43,448.40 is: 65,327.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,100.96 : 70,819.80 = 43,448.40 : x
  2. Step 2: Convert to fraction form
    47,100.96/70,819.80 = 43,448.40/x
  3. Step 3: Cross multiply
    47,100.96x = 70,819.80 × 43,448.40
  4. Step 4: Simplify right side
    47,100.96x = 3,077,006,998.32
  5. Step 5: Solve for x
    x = 3,077,006,998.32/47,100.96
  6. Step 6: Final answer
    x = 65,327.90

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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.