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Finding the Fourth Proportional to 188,079.63, 259,549.90 and 107,508.90

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Solution

The fourth proportional to 188,079.63, 259,549.90 and 107,508.90 is: 148,362.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,079.63 : 259,549.90 = 107,508.90 : x
  2. Step 2: Convert to fraction form
    188,079.63/259,549.90 = 107,508.90/x
  3. Step 3: Cross multiply
    188,079.63x = 259,549.90 × 107,508.90
  4. Step 4: Simplify right side
    188,079.63x = 27,903,924,948.65
  5. Step 5: Solve for x
    x = 27,903,924,948.65/188,079.63
  6. Step 6: Final answer
    x = 148,362.29

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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.