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Finding the Fourth Proportional to 383,574.20, 575,340.60 and 117,334.75

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Solution

The fourth proportional to 383,574.20, 575,340.60 and 117,334.75 is: 175,995.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,574.20 : 575,340.60 = 117,334.75 : x
  2. Step 2: Convert to fraction form
    383,574.20/575,340.60 = 117,334.75/x
  3. Step 3: Cross multiply
    383,574.20x = 575,340.60 × 117,334.75
  4. Step 4: Simplify right side
    383,574.20x = 67,507,443,440.82
  5. Step 5: Solve for x
    x = 67,507,443,440.82/383,574.20
  6. Step 6: Final answer
    x = 175,995.79

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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.