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Finding the Fourth Proportional to 402,562.70, 603,843.66 and 103,042.81

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Solution

The fourth proportional to 402,562.70, 603,843.66 and 103,042.81 is: 154,564.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,562.70 : 603,843.66 = 103,042.81 : x
  2. Step 2: Convert to fraction form
    402,562.70/603,843.66 = 103,042.81/x
  3. Step 3: Cross multiply
    402,562.70x = 603,843.66 × 103,042.81
  4. Step 4: Simplify right side
    402,562.70x = 62,221,744,885.27
  5. Step 5: Solve for x
    x = 62,221,744,885.27/402,562.70
  6. Step 6: Final answer
    x = 154,564.11

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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.