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Finding the Fourth Proportional to 355,095.91, 532,648.73 and 118,438.82

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Solution

The fourth proportional to 355,095.91, 532,648.73 and 118,438.82 is: 177,659.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,095.91 : 532,648.73 = 118,438.82 : x
  2. Step 2: Convert to fraction form
    355,095.91/532,648.73 = 118,438.82/x
  3. Step 3: Cross multiply
    355,095.91x = 532,648.73 × 118,438.82
  4. Step 4: Simplify right side
    355,095.91x = 63,086,286,685.98
  5. Step 5: Solve for x
    x = 63,086,286,685.98/355,095.91
  6. Step 6: Final answer
    x = 177,659.85

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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.