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Finding the Fourth Proportional to 358,404.20, 537,606.30 and 147,933.80

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Solution

The fourth proportional to 358,404.20, 537,606.30 and 147,933.80 is: 221,900.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,404.20 : 537,606.30 = 147,933.80 : x
  2. Step 2: Convert to fraction form
    358,404.20/537,606.30 = 147,933.80/x
  3. Step 3: Cross multiply
    358,404.20x = 537,606.30 × 147,933.80
  4. Step 4: Simplify right side
    358,404.20x = 79,530,142,862.94
  5. Step 5: Solve for x
    x = 79,530,142,862.94/358,404.20
  6. Step 6: Final answer
    x = 221,900.70

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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.