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Finding the Fourth Proportional to 55,319,195.60, 82,978,793.40 and 51,540,059.60

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Solution

The fourth proportional to 55,319,195.60, 82,978,793.40 and 51,540,059.60 is: 77,310,089.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,319,195.60 : 82,978,793.40 = 51,540,059.60 : x
  2. Step 2: Convert to fraction form
    55,319,195.60/82,978,793.40 = 51,540,059.60/x
  3. Step 3: Cross multiply
    55,319,195.60x = 82,978,793.40 × 51,540,059.60
  4. Step 4: Simplify right side
    55,319,195.60x = 4,276,731,957,372,087
  5. Step 5: Solve for x
    x = 4,276,731,957,372,087/55,319,195.60
  6. Step 6: Final answer
    x = 77,310,089.40

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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.