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Finding the Fourth Proportional to 174,984.80, 262,477.20 and 139,992.80

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Solution

The fourth proportional to 174,984.80, 262,477.20 and 139,992.80 is: 209,989.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,984.80 : 262,477.20 = 139,992.80 : x
  2. Step 2: Convert to fraction form
    174,984.80/262,477.20 = 139,992.80/x
  3. Step 3: Cross multiply
    174,984.80x = 262,477.20 × 139,992.80
  4. Step 4: Simplify right side
    174,984.80x = 36,744,918,164.16
  5. Step 5: Solve for x
    x = 36,744,918,164.16/174,984.80
  6. Step 6: Final answer
    x = 209,989.20

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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.