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Finding the Fourth Proportional to 117,242.43, 175,862.12 and 28,495.68

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Solution

The fourth proportional to 117,242.43, 175,862.12 and 28,495.68 is: 42,743.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,242.43 : 175,862.12 = 28,495.68 : x
  2. Step 2: Convert to fraction form
    117,242.43/175,862.12 = 28,495.68/x
  3. Step 3: Cross multiply
    117,242.43x = 175,862.12 × 28,495.68
  4. Step 4: Simplify right side
    117,242.43x = 5,011,310,553.16
  5. Step 5: Solve for x
    x = 5,011,310,553.16/117,242.43
  6. Step 6: Final answer
    x = 42,743.15

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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.