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Finding the Fourth Proportional to 116,717.94, 175,087.92 and 90,452.10

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Solution

The fourth proportional to 116,717.94, 175,087.92 and 90,452.10 is: 135,686.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,717.94 : 175,087.92 = 90,452.10 : x
  2. Step 2: Convert to fraction form
    116,717.94/175,087.92 = 90,452.10/x
  3. Step 3: Cross multiply
    116,717.94x = 175,087.92 × 90,452.10
  4. Step 4: Simplify right side
    116,717.94x = 15,837,070,048.63
  5. Step 5: Solve for x
    x = 15,837,070,048.63/116,717.94
  6. Step 6: Final answer
    x = 135,686.68

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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.