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Finding the Fourth Proportional to 119,473.72, 164,870.29 and 65,757.58

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Solution

The fourth proportional to 119,473.72, 164,870.29 and 65,757.58 is: 90,743.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,473.72 : 164,870.29 = 65,757.58 : x
  2. Step 2: Convert to fraction form
    119,473.72/164,870.29 = 65,757.58/x
  3. Step 3: Cross multiply
    119,473.72x = 164,870.29 × 65,757.58
  4. Step 4: Simplify right side
    119,473.72x = 10,841,471,048.13
  5. Step 5: Solve for x
    x = 10,841,471,048.13/119,473.72
  6. Step 6: Final answer
    x = 90,743.56

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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.