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Finding the Fourth Proportional to 174,989.70, 262,484.55 and 139,997.70

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Solution

The fourth proportional to 174,989.70, 262,484.55 and 139,997.70 is: 209,996.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,989.70 : 262,484.55 = 139,997.70 : x
  2. Step 2: Convert to fraction form
    174,989.70/262,484.55 = 139,997.70/x
  3. Step 3: Cross multiply
    174,989.70x = 262,484.55 × 139,997.70
  4. Step 4: Simplify right side
    174,989.70x = 36,747,233,285.54
  5. Step 5: Solve for x
    x = 36,747,233,285.54/174,989.70
  6. Step 6: Final answer
    x = 209,996.55

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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.