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Finding the Fourth Proportional to 215,853.98, 297,871.11 and 119,061.68

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Solution

The fourth proportional to 215,853.98, 297,871.11 and 119,061.68 is: 164,301.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,853.98 : 297,871.11 = 119,061.68 : x
  2. Step 2: Convert to fraction form
    215,853.98/297,871.11 = 119,061.68/x
  3. Step 3: Cross multiply
    215,853.98x = 297,871.11 × 119,061.68
  4. Step 4: Simplify right side
    215,853.98x = 35,465,033,290.71
  5. Step 5: Solve for x
    x = 35,465,033,290.71/215,853.98
  6. Step 6: Final answer
    x = 164,301.04

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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.