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Finding the Fourth Proportional to 371,959.92, 557,624.59 and 147,478.95

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Solution

The fourth proportional to 371,959.92, 557,624.59 and 147,478.95 is: 221,093.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,959.92 : 557,624.59 = 147,478.95 : x
  2. Step 2: Convert to fraction form
    371,959.92/557,624.59 = 147,478.95/x
  3. Step 3: Cross multiply
    371,959.92x = 557,624.59 × 147,478.95
  4. Step 4: Simplify right side
    371,959.92x = 82,237,888,658.68
  5. Step 5: Solve for x
    x = 82,237,888,658.68/371,959.92
  6. Step 6: Final answer
    x = 221,093.41

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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.