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Finding the Fourth Proportional to 177,991,679.60, 266,987,519.40 and 56,831,999.60

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Solution

The fourth proportional to 177,991,679.60, 266,987,519.40 and 56,831,999.60 is: 85,247,999.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,991,679.60 : 266,987,519.40 = 56,831,999.60 : x
  2. Step 2: Convert to fraction form
    177,991,679.60/266,987,519.40 = 56,831,999.60/x
  3. Step 3: Cross multiply
    177,991,679.60x = 266,987,519.40 × 56,831,999.60
  4. Step 4: Simplify right side
    177,991,679.60x = 15,173,434,595,745,792
  5. Step 5: Solve for x
    x = 15,173,434,595,745,792/177,991,679.60
  6. Step 6: Final answer
    x = 85,247,999.40

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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.