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Finding the Fourth Proportional to 101,888.02, 152,633.22 and 66,721.06

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Solution

The fourth proportional to 101,888.02, 152,633.22 and 66,721.06 is: 99,951.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,888.02 : 152,633.22 = 66,721.06 : x
  2. Step 2: Convert to fraction form
    101,888.02/152,633.22 = 66,721.06/x
  3. Step 3: Cross multiply
    101,888.02x = 152,633.22 × 66,721.06
  4. Step 4: Simplify right side
    101,888.02x = 10,183,850,229.61
  5. Step 5: Solve for x
    x = 10,183,850,229.61/101,888.02
  6. Step 6: Final answer
    x = 99,951.40

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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.