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Finding the Fourth Proportional to 215,645.65, 297,590.96 and 118,849.48

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Solution

The fourth proportional to 215,645.65, 297,590.96 and 118,849.48 is: 164,012.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,645.65 : 297,590.96 = 118,849.48 : x
  2. Step 2: Convert to fraction form
    215,645.65/297,590.96 = 118,849.48/x
  3. Step 3: Cross multiply
    215,645.65x = 297,590.96 × 118,849.48
  4. Step 4: Simplify right side
    215,645.65x = 35,368,530,848.70
  5. Step 5: Solve for x
    x = 35,368,530,848.70/215,645.65
  6. Step 6: Final answer
    x = 164,012.26

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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.