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Finding the Fourth Proportional to 196,991,754.40, 295,487,631.60 and 60,659,423.20

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Solution

The fourth proportional to 196,991,754.40, 295,487,631.60 and 60,659,423.20 is: 90,989,134.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,991,754.40 : 295,487,631.60 = 60,659,423.20 : x
  2. Step 2: Convert to fraction form
    196,991,754.40/295,487,631.60 = 60,659,423.20/x
  3. Step 3: Cross multiply
    196,991,754.40x = 295,487,631.60 × 60,659,423.20
  4. Step 4: Simplify right side
    196,991,754.40x = 17,924,109,295,590,096
  5. Step 5: Solve for x
    x = 17,924,109,295,590,096/196,991,754.40
  6. Step 6: Final answer
    x = 90,989,134.80

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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.