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Finding the Fourth Proportional to 405,160.68, 559,119.60 and 223,885.11

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Solution

The fourth proportional to 405,160.68, 559,119.60 and 223,885.11 is: 308,960.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,160.68 : 559,119.60 = 223,885.11 : x
  2. Step 2: Convert to fraction form
    405,160.68/559,119.60 = 223,885.11/x
  3. Step 3: Cross multiply
    405,160.68x = 559,119.60 × 223,885.11
  4. Step 4: Simplify right side
    405,160.68x = 125,178,553,149.16
  5. Step 5: Solve for x
    x = 125,178,553,149.16/405,160.68
  6. Step 6: Final answer
    x = 308,960.27

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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.