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Finding the Fourth Proportional to 101,374.14, 152,091.81 and 53,981.04

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Solution

The fourth proportional to 101,374.14, 152,091.81 and 53,981.04 is: 80,987.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,374.14 : 152,091.81 = 53,981.04 : x
  2. Step 2: Convert to fraction form
    101,374.14/152,091.81 = 53,981.04/x
  3. Step 3: Cross multiply
    101,374.14x = 152,091.81 × 53,981.04
  4. Step 4: Simplify right side
    101,374.14x = 8,210,074,079.28
  5. Step 5: Solve for x
    x = 8,210,074,079.28/101,374.14
  6. Step 6: Final answer
    x = 80,987.85

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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.