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Finding the Fourth Proportional to 174,954.80, 262,432.20 and 139,962.80

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Solution

The fourth proportional to 174,954.80, 262,432.20 and 139,962.80 is: 209,944.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,954.80 : 262,432.20 = 139,962.80 : x
  2. Step 2: Convert to fraction form
    174,954.80/262,432.20 = 139,962.80/x
  3. Step 3: Cross multiply
    174,954.80x = 262,432.20 × 139,962.80
  4. Step 4: Simplify right side
    174,954.80x = 36,730,745,522.16
  5. Step 5: Solve for x
    x = 36,730,745,522.16/174,954.80
  6. Step 6: Final answer
    x = 209,944.20

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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.