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Finding the Fourth Proportional to 281,010.60, 421,515.90 and 174,722.40

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Solution

The fourth proportional to 281,010.60, 421,515.90 and 174,722.40 is: 262,083.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,010.60 : 421,515.90 = 174,722.40 : x
  2. Step 2: Convert to fraction form
    281,010.60/421,515.90 = 174,722.40/x
  3. Step 3: Cross multiply
    281,010.60x = 421,515.90 × 174,722.40
  4. Step 4: Simplify right side
    281,010.60x = 73,648,269,686.16
  5. Step 5: Solve for x
    x = 73,648,269,686.16/281,010.60
  6. Step 6: Final answer
    x = 262,083.60

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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.