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Finding the Fourth Proportional to 383,686.92, 575,530.92 and 117,448.56

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Solution

The fourth proportional to 383,686.92, 575,530.92 and 117,448.56 is: 176,173.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,686.92 : 575,530.92 = 117,448.56 : x
  2. Step 2: Convert to fraction form
    383,686.92/575,530.92 = 117,448.56/x
  3. Step 3: Cross multiply
    383,686.92x = 575,530.92 × 117,448.56
  4. Step 4: Simplify right side
    383,686.92x = 67,595,277,789.48
  5. Step 5: Solve for x
    x = 67,595,277,789.48/383,686.92
  6. Step 6: Final answer
    x = 176,173.01

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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.