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Finding the Fourth Proportional to 358,122.92, 537,245.58 and 147,645.80

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Solution

The fourth proportional to 358,122.92, 537,245.58 and 147,645.80 is: 221,493.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,122.92 : 537,245.58 = 147,645.80 : x
  2. Step 2: Convert to fraction form
    358,122.92/537,245.58 = 147,645.80/x
  3. Step 3: Cross multiply
    358,122.92x = 537,245.58 × 147,645.80
  4. Step 4: Simplify right side
    358,122.92x = 79,322,053,455.56
  5. Step 5: Solve for x
    x = 79,322,053,455.56/358,122.92
  6. Step 6: Final answer
    x = 221,493.93

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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.