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Finding the Fourth Proportional to 188,459.11, 260,079.83 and 110,920.70

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Solution

The fourth proportional to 188,459.11, 260,079.83 and 110,920.70 is: 153,074.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,459.11 : 260,079.83 = 110,920.70 : x
  2. Step 2: Convert to fraction form
    188,459.11/260,079.83 = 110,920.70/x
  3. Step 3: Cross multiply
    188,459.11x = 260,079.83 × 110,920.70
  4. Step 4: Simplify right side
    188,459.11x = 28,848,236,813.53
  5. Step 5: Solve for x
    x = 28,848,236,813.53/188,459.11
  6. Step 6: Final answer
    x = 153,074.25

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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.