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Finding the Fourth Proportional to 177,991,678.60, 266,987,517.90 and 56,831,998.60

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Solution

The fourth proportional to 177,991,678.60, 266,987,517.90 and 56,831,998.60 is: 85,247,997.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,991,678.60 : 266,987,517.90 = 56,831,998.60 : x
  2. Step 2: Convert to fraction form
    177,991,678.60/266,987,517.90 = 56,831,998.60/x
  3. Step 3: Cross multiply
    177,991,678.60x = 266,987,517.90 × 56,831,998.60
  4. Step 4: Simplify right side
    177,991,678.60x = 15,173,434,243,510,276
  5. Step 5: Solve for x
    x = 15,173,434,243,510,276/177,991,678.60
  6. Step 6: Final answer
    x = 85,247,997.90

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1.5x scale

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.