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Finding the Fourth Proportional to 223,711.92, 335,567.76 and 81,567.84

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Solution

The fourth proportional to 223,711.92, 335,567.76 and 81,567.84 is: 122,351.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,711.92 : 335,567.76 = 81,567.84 : x
  2. Step 2: Convert to fraction form
    223,711.92/335,567.76 = 81,567.84/x
  3. Step 3: Cross multiply
    223,711.92x = 335,567.76 × 81,567.84
  4. Step 4: Simplify right side
    223,711.92x = 27,371,537,356.84
  5. Step 5: Solve for x
    x = 27,371,537,356.84/223,711.92
  6. Step 6: Final answer
    x = 122,351.72

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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.