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Finding the Fourth Proportional to 115,653, 159,601.14 and 62,661

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Solution

The fourth proportional to 115,653, 159,601.14 and 62,661 is: 86,472.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,653 : 159,601.14 = 62,661 : x
  2. Step 2: Convert to fraction form
    115,653/159,601.14 = 62,661/x
  3. Step 3: Cross multiply
    115,653x = 159,601.14 × 62,661
  4. Step 4: Simplify right side
    115,653x = 10,000,767,033.54
  5. Step 5: Solve for x
    x = 10,000,767,033.54/115,653
  6. Step 6: Final answer
    x = 86,472.18

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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.