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Finding the Fourth Proportional to 476,833.82, 715,251.34 and 121,848.18

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Solution

The fourth proportional to 476,833.82, 715,251.34 and 121,848.18 is: 182,772.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,833.82 : 715,251.34 = 121,848.18 : x
  2. Step 2: Convert to fraction form
    476,833.82/715,251.34 = 121,848.18/x
  3. Step 3: Cross multiply
    476,833.82x = 715,251.34 × 121,848.18
  4. Step 4: Simplify right side
    476,833.82x = 87,152,074,021.56
  5. Step 5: Solve for x
    x = 87,152,074,021.56/476,833.82
  6. Step 6: Final answer
    x = 182,772.43

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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.