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Finding the Fourth Proportional to 84,536.60, 126,808.80 and 47,068.46

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Solution

The fourth proportional to 84,536.60, 126,808.80 and 47,068.46 is: 70,604.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,536.60 : 126,808.80 = 47,068.46 : x
  2. Step 2: Convert to fraction form
    84,536.60/126,808.80 = 47,068.46/x
  3. Step 3: Cross multiply
    84,536.60x = 126,808.80 × 47,068.46
  4. Step 4: Simplify right side
    84,536.60x = 5,968,694,930.45
  5. Step 5: Solve for x
    x = 5,968,694,930.45/84,536.60
  6. Step 6: Final answer
    x = 70,604.86

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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.