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Finding the Fourth Proportional to 68,079.32, 101,660.01 and 55,623.95

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Solution

The fourth proportional to 68,079.32, 101,660.01 and 55,623.95 is: 83,060.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,079.32 : 101,660.01 = 55,623.95 : x
  2. Step 2: Convert to fraction form
    68,079.32/101,660.01 = 55,623.95/x
  3. Step 3: Cross multiply
    68,079.32x = 101,660.01 × 55,623.95
  4. Step 4: Simplify right side
    68,079.32x = 5,654,730,804.94
  5. Step 5: Solve for x
    x = 5,654,730,804.94/68,079.32
  6. Step 6: Final answer
    x = 83,060.92

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.