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Finding the Fourth Proportional to 345,491.53, 476,792.93 and 192,529.78

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Solution

The fourth proportional to 345,491.53, 476,792.93 and 192,529.78 is: 265,699.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,491.53 : 476,792.93 = 192,529.78 : x
  2. Step 2: Convert to fraction form
    345,491.53/476,792.93 = 192,529.78/x
  3. Step 3: Cross multiply
    345,491.53x = 476,792.93 × 192,529.78
  4. Step 4: Simplify right side
    345,491.53x = 91,796,837,207.80
  5. Step 5: Solve for x
    x = 91,796,837,207.80/345,491.53
  6. Step 6: Final answer
    x = 265,699.24

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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.