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Finding the Fourth Proportional to 231,199.88, 346,799.81 and 64,987.88

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Solution

The fourth proportional to 231,199.88, 346,799.81 and 64,987.88 is: 97,481.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,199.88 : 346,799.81 = 64,987.88 : x
  2. Step 2: Convert to fraction form
    231,199.88/346,799.81 = 64,987.88/x
  3. Step 3: Cross multiply
    231,199.88x = 346,799.81 × 64,987.88
  4. Step 4: Simplify right side
    231,199.88x = 22,537,782,864.77
  5. Step 5: Solve for x
    x = 22,537,782,864.77/231,199.88
  6. Step 6: Final answer
    x = 97,481.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.