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Finding the Fourth Proportional to 405,201.66, 559,211.96 and 223,948.97

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Solution

The fourth proportional to 405,201.66, 559,211.96 and 223,948.97 is: 309,068.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,201.66 : 559,211.96 = 223,948.97 : x
  2. Step 2: Convert to fraction form
    405,201.66/559,211.96 = 223,948.97/x
  3. Step 3: Cross multiply
    405,201.66x = 559,211.96 × 223,948.97
  4. Step 4: Simplify right side
    405,201.66x = 125,234,944,411.58
  5. Step 5: Solve for x
    x = 125,234,944,411.58/405,201.66
  6. Step 6: Final answer
    x = 309,068.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.