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Finding the Fourth Proportional to 174,937.80, 262,406.70 and 139,945.80

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Solution

The fourth proportional to 174,937.80, 262,406.70 and 139,945.80 is: 209,918.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,937.80 : 262,406.70 = 139,945.80 : x
  2. Step 2: Convert to fraction form
    174,937.80/262,406.70 = 139,945.80/x
  3. Step 3: Cross multiply
    174,937.80x = 262,406.70 × 139,945.80
  4. Step 4: Simplify right side
    174,937.80x = 36,722,715,556.86
  5. Step 5: Solve for x
    x = 36,722,715,556.86/174,937.80
  6. Step 6: Final answer
    x = 209,918.70

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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.