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Finding the Fourth Proportional to 383,798.20, 575,697.30 and 117,556.60

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Solution

The fourth proportional to 383,798.20, 575,697.30 and 117,556.60 is: 176,334.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,798.20 : 575,697.30 = 117,556.60 : x
  2. Step 2: Convert to fraction form
    383,798.20/575,697.30 = 117,556.60/x
  3. Step 3: Cross multiply
    383,798.20x = 575,697.30 × 117,556.60
  4. Step 4: Simplify right side
    383,798.20x = 67,677,017,217.18
  5. Step 5: Solve for x
    x = 67,677,017,217.18/383,798.20
  6. Step 6: Final answer
    x = 176,334.90

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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.