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Finding the Fourth Proportional to 211,351.62, 291,758.31 and 147,938.34

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Solution

The fourth proportional to 211,351.62, 291,758.31 and 147,938.34 is: 204,220.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,351.62 : 291,758.31 = 147,938.34 : x
  2. Step 2: Convert to fraction form
    211,351.62/291,758.31 = 147,938.34/x
  3. Step 3: Cross multiply
    211,351.62x = 291,758.31 × 147,938.34
  4. Step 4: Simplify right side
    211,351.62x = 43,162,240,062.61
  5. Step 5: Solve for x
    x = 43,162,240,062.61/211,351.62
  6. Step 6: Final answer
    x = 204,220.06

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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.