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Finding the Fourth Proportional to 223,792.31, 335,685.16 and 55,312.65

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Solution

The fourth proportional to 223,792.31, 335,685.16 and 55,312.65 is: 82,968.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,792.31 : 335,685.16 = 55,312.65 : x
  2. Step 2: Convert to fraction form
    223,792.31/335,685.16 = 55,312.65/x
  3. Step 3: Cross multiply
    223,792.31x = 335,685.16 × 55,312.65
  4. Step 4: Simplify right side
    223,792.31x = 18,567,635,626.99
  5. Step 5: Solve for x
    x = 18,567,635,626.99/223,792.31
  6. Step 6: Final answer
    x = 82,968.16

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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.