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Finding the Fourth Proportional to 163,687.17, 245,431.92 and 63,828.21

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Solution

The fourth proportional to 163,687.17, 245,431.92 and 63,828.21 is: 95,703.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,687.17 : 245,431.92 = 63,828.21 : x
  2. Step 2: Convert to fraction form
    163,687.17/245,431.92 = 63,828.21/x
  3. Step 3: Cross multiply
    163,687.17x = 245,431.92 × 63,828.21
  4. Step 4: Simplify right side
    163,687.17x = 15,665,480,130.46
  5. Step 5: Solve for x
    x = 15,665,480,130.46/163,687.17
  6. Step 6: Final answer
    x = 95,703.78

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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.