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Finding the Fourth Proportional to 67,068,003.60, 100,602,005.40 and 64,422,608.40

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Solution

The fourth proportional to 67,068,003.60, 100,602,005.40 and 64,422,608.40 is: 96,633,912.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,068,003.60 : 100,602,005.40 = 64,422,608.40 : x
  2. Step 2: Convert to fraction form
    67,068,003.60/100,602,005.40 = 64,422,608.40/x
  3. Step 3: Cross multiply
    67,068,003.60x = 100,602,005.40 × 64,422,608.40
  4. Step 4: Simplify right side
    67,068,003.60x = 6,481,043,598,138,886
  5. Step 5: Solve for x
    x = 6,481,043,598,138,886/67,068,003.60
  6. Step 6: Final answer
    x = 96,633,912.60

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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.