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Finding the Fourth Proportional to 66,734,197.60, 100,101,296.40 and 52,401,474.40

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Solution

The fourth proportional to 66,734,197.60, 100,101,296.40 and 52,401,474.40 is: 78,602,211.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,734,197.60 : 100,101,296.40 = 52,401,474.40 : x
  2. Step 2: Convert to fraction form
    66,734,197.60/100,101,296.40 = 52,401,474.40/x
  3. Step 3: Cross multiply
    66,734,197.60x = 100,101,296.40 × 52,401,474.40
  4. Step 4: Simplify right side
    66,734,197.60x = 5,245,455,520,711,412
  5. Step 5: Solve for x
    x = 5,245,455,520,711,412/66,734,197.60
  6. Step 6: Final answer
    x = 78,602,211.60

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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.