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Finding the Fourth Proportional to 117,158.57, 175,701.51 and 42,268.97

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Solution

The fourth proportional to 117,158.57, 175,701.51 and 42,268.97 is: 63,390.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,158.57 : 175,701.51 = 42,268.97 : x
  2. Step 2: Convert to fraction form
    117,158.57/175,701.51 = 42,268.97/x
  3. Step 3: Cross multiply
    117,158.57x = 175,701.51 × 42,268.97
  4. Step 4: Simplify right side
    117,158.57x = 7,426,720,976.64
  5. Step 5: Solve for x
    x = 7,426,720,976.64/117,158.57
  6. Step 6: Final answer
    x = 63,390.34

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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.