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Finding the Fourth Proportional to 383,989.08, 576,094.32 and 117,788.79

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Solution

The fourth proportional to 383,989.08, 576,094.32 and 117,788.79 is: 176,717.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,989.08 : 576,094.32 = 117,788.79 : x
  2. Step 2: Convert to fraction form
    383,989.08/576,094.32 = 117,788.79/x
  3. Step 3: Cross multiply
    383,989.08x = 576,094.32 × 117,788.79
  4. Step 4: Simplify right side
    383,989.08x = 67,857,452,878.67
  5. Step 5: Solve for x
    x = 67,857,452,878.67/383,989.08
  6. Step 6: Final answer
    x = 176,717.14

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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.