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Finding the Fourth Proportional to 336,421.20, 504,232.20 and 178,568.40

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Solution

The fourth proportional to 336,421.20, 504,232.20 and 178,568.40 is: 267,640.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,421.20 : 504,232.20 = 178,568.40 : x
  2. Step 2: Convert to fraction form
    336,421.20/504,232.20 = 178,568.40/x
  3. Step 3: Cross multiply
    336,421.20x = 504,232.20 × 178,568.40
  4. Step 4: Simplify right side
    336,421.20x = 90,039,937,182.48
  5. Step 5: Solve for x
    x = 90,039,937,182.48/336,421.20
  6. Step 6: Final answer
    x = 267,640.50

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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.