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Finding the Fourth Proportional to 174,987.70, 262,481.55 and 139,995.70

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Solution

The fourth proportional to 174,987.70, 262,481.55 and 139,995.70 is: 209,993.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,987.70 : 262,481.55 = 139,995.70 : x
  2. Step 2: Convert to fraction form
    174,987.70/262,481.55 = 139,995.70/x
  3. Step 3: Cross multiply
    174,987.70x = 262,481.55 × 139,995.70
  4. Step 4: Simplify right side
    174,987.70x = 36,746,288,329.34
  5. Step 5: Solve for x
    x = 36,746,288,329.34/174,987.70
  6. Step 6: Final answer
    x = 209,993.55

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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.