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Finding the Fourth Proportional to 383,129.34, 574,710.18 and 113,258.07

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Solution

The fourth proportional to 383,129.34, 574,710.18 and 113,258.07 is: 169,891.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,129.34 : 574,710.18 = 113,258.07 : x
  2. Step 2: Convert to fraction form
    383,129.34/574,710.18 = 113,258.07/x
  3. Step 3: Cross multiply
    383,129.34x = 574,710.18 × 113,258.07
  4. Step 4: Simplify right side
    383,129.34x = 65,090,565,796.15
  5. Step 5: Solve for x
    x = 65,090,565,796.15/383,129.34
  6. Step 6: Final answer
    x = 169,891.89

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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.