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Finding the Fourth Proportional to 248,142.80, 342,434.50 and 134,965.52

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Solution

The fourth proportional to 248,142.80, 342,434.50 and 134,965.52 is: 186,251.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,142.80 : 342,434.50 = 134,965.52 : x
  2. Step 2: Convert to fraction form
    248,142.80/342,434.50 = 134,965.52/x
  3. Step 3: Cross multiply
    248,142.80x = 342,434.50 × 134,965.52
  4. Step 4: Simplify right side
    248,142.80x = 46,216,850,358.44
  5. Step 5: Solve for x
    x = 46,216,850,358.44/248,142.80
  6. Step 6: Final answer
    x = 186,251.02

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.