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Finding the Fourth Proportional to 330,120.89, 495,089.88 and 116,860.71

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Solution

The fourth proportional to 330,120.89, 495,089.88 and 116,860.71 is: 175,258.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,120.89 : 495,089.88 = 116,860.71 : x
  2. Step 2: Convert to fraction form
    330,120.89/495,089.88 = 116,860.71/x
  3. Step 3: Cross multiply
    330,120.89x = 495,089.88 × 116,860.71
  4. Step 4: Simplify right side
    330,120.89x = 57,856,556,528.09
  5. Step 5: Solve for x
    x = 57,856,556,528.09/330,120.89
  6. Step 6: Final answer
    x = 175,258.69

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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.