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Finding the Fourth Proportional to 243,174.04, 335,574.56 and 135,754

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Solution

The fourth proportional to 243,174.04, 335,574.56 and 135,754 is: 187,337.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,174.04 : 335,574.56 = 135,754 : x
  2. Step 2: Convert to fraction form
    243,174.04/335,574.56 = 135,754/x
  3. Step 3: Cross multiply
    243,174.04x = 335,574.56 × 135,754
  4. Step 4: Simplify right side
    243,174.04x = 45,555,588,818.24
  5. Step 5: Solve for x
    x = 45,555,588,818.24/243,174.04
  6. Step 6: Final answer
    x = 187,337.39

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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.