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Finding the Fourth Proportional to 242,791.63, 335,052.65 and 135,359.51

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Solution

The fourth proportional to 242,791.63, 335,052.65 and 135,359.51 is: 186,796.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,791.63 : 335,052.65 = 135,359.51 : x
  2. Step 2: Convert to fraction form
    242,791.63/335,052.65 = 135,359.51/x
  3. Step 3: Cross multiply
    242,791.63x = 335,052.65 × 135,359.51
  4. Step 4: Simplify right side
    242,791.63x = 45,352,561,191.34
  5. Step 5: Solve for x
    x = 45,352,561,191.34/242,791.63
  6. Step 6: Final answer
    x = 186,796.23

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1.5x scale

Why These Related Problems?

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