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Finding the Fourth Proportional to 446,859.96, 670,333.68 and 147,218.28

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Solution

The fourth proportional to 446,859.96, 670,333.68 and 147,218.28 is: 220,841.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,859.96 : 670,333.68 = 147,218.28 : x
  2. Step 2: Convert to fraction form
    446,859.96/670,333.68 = 147,218.28/x
  3. Step 3: Cross multiply
    446,859.96x = 670,333.68 × 147,218.28
  4. Step 4: Simplify right side
    446,859.96x = 98,685,371,395.67
  5. Step 5: Solve for x
    x = 98,685,371,395.67/446,859.96
  6. Step 6: Final answer
    x = 220,841.83

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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.