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Finding the Fourth Proportional to 66,733,933.60, 100,100,900.40 and 52,401,210.40

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Solution

The fourth proportional to 66,733,933.60, 100,100,900.40 and 52,401,210.40 is: 78,601,815.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,733,933.60 : 100,100,900.40 = 52,401,210.40 : x
  2. Step 2: Convert to fraction form
    66,733,933.60/100,100,900.40 = 52,401,210.40/x
  3. Step 3: Cross multiply
    66,733,933.60x = 100,100,900.40 × 52,401,210.40
  4. Step 4: Simplify right side
    66,733,933.60x = 5,245,408,343,089,844
  5. Step 5: Solve for x
    x = 5,245,408,343,089,844/66,733,933.60
  6. Step 6: Final answer
    x = 78,601,815.60

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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.