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Finding the Fourth Proportional to 410,841.10, 616,261.65 and 144,901.90

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Solution

The fourth proportional to 410,841.10, 616,261.65 and 144,901.90 is: 217,352.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,841.10 : 616,261.65 = 144,901.90 : x
  2. Step 2: Convert to fraction form
    410,841.10/616,261.65 = 144,901.90/x
  3. Step 3: Cross multiply
    410,841.10x = 616,261.65 × 144,901.90
  4. Step 4: Simplify right side
    410,841.10x = 89,297,483,982.14
  5. Step 5: Solve for x
    x = 89,297,483,982.14/410,841.10
  6. Step 6: Final answer
    x = 217,352.85

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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.