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Finding the Fourth Proportional to 383,685.42, 575,528.67 and 117,447.06

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Solution

The fourth proportional to 383,685.42, 575,528.67 and 117,447.06 is: 176,170.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,685.42 : 575,528.67 = 117,447.06 : x
  2. Step 2: Convert to fraction form
    383,685.42/575,528.67 = 117,447.06/x
  3. Step 3: Cross multiply
    383,685.42x = 575,528.67 × 117,447.06
  4. Step 4: Simplify right side
    383,685.42x = 67,594,150,237.21
  5. Step 5: Solve for x
    x = 67,594,150,237.21/383,685.42
  6. Step 6: Final answer
    x = 176,170.76

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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.