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Finding the Fourth Proportional to 383,372.90, 575,065.31 and 113,528.34

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Solution

The fourth proportional to 383,372.90, 575,065.31 and 113,528.34 is: 170,294.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,372.90 : 575,065.31 = 113,528.34 : x
  2. Step 2: Convert to fraction form
    383,372.90/575,065.31 = 113,528.34/x
  3. Step 3: Cross multiply
    383,372.90x = 575,065.31 × 113,528.34
  4. Step 4: Simplify right side
    383,372.90x = 65,286,207,444.38
  5. Step 5: Solve for x
    x = 65,286,207,444.38/383,372.90
  6. Step 6: Final answer
    x = 170,294.27

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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.