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Finding the Fourth Proportional to 66,059,903.70, 99,089,855.55 and 56,493,965.70

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Solution

The fourth proportional to 66,059,903.70, 99,089,855.55 and 56,493,965.70 is: 84,740,948.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,059,903.70 : 99,089,855.55 = 56,493,965.70 : x
  2. Step 2: Convert to fraction form
    66,059,903.70/99,089,855.55 = 56,493,965.70/x
  3. Step 3: Cross multiply
    66,059,903.70x = 99,089,855.55 × 56,493,965.70
  4. Step 4: Simplify right side
    66,059,903.70x = 5,597,978,900,659,655
  5. Step 5: Solve for x
    x = 5,597,978,900,659,655/66,059,903.70
  6. Step 6: Final answer
    x = 84,740,948.55

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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.