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Finding the Fourth Proportional to 117,242.55, 175,863.92 and 28,495.49

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Solution

The fourth proportional to 117,242.55, 175,863.92 and 28,495.49 is: 42,743.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,242.55 : 175,863.92 = 28,495.49 : x
  2. Step 2: Convert to fraction form
    117,242.55/175,863.92 = 28,495.49/x
  3. Step 3: Cross multiply
    117,242.55x = 175,863.92 × 28,495.49
  4. Step 4: Simplify right side
    117,242.55x = 5,011,327,551.92
  5. Step 5: Solve for x
    x = 5,011,327,551.92/117,242.55
  6. Step 6: Final answer
    x = 42,743.25

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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.