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Finding the Fourth Proportional to 200,436.48, 300,679.46 and 65,497.37

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Solution

The fourth proportional to 200,436.48, 300,679.46 and 65,497.37 is: 98,254.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,436.48 : 300,679.46 = 65,497.37 : x
  2. Step 2: Convert to fraction form
    200,436.48/300,679.46 = 65,497.37/x
  3. Step 3: Cross multiply
    200,436.48x = 300,679.46 × 65,497.37
  4. Step 4: Simplify right side
    200,436.48x = 19,693,712,012.14
  5. Step 5: Solve for x
    x = 19,693,712,012.14/200,436.48
  6. Step 6: Final answer
    x = 98,254.13

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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.