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Finding the Fourth Proportional to 210,576, 315,918.72 and 62,832

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Solution

The fourth proportional to 210,576, 315,918.72 and 62,832 is: 94,264.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,576 : 315,918.72 = 62,832 : x
  2. Step 2: Convert to fraction form
    210,576/315,918.72 = 62,832/x
  3. Step 3: Cross multiply
    210,576x = 315,918.72 × 62,832
  4. Step 4: Simplify right side
    210,576x = 19,849,805,015.04
  5. Step 5: Solve for x
    x = 19,849,805,015.04/210,576
  6. Step 6: Final answer
    x = 94,264.33

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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.