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Finding the Fourth Proportional to 188,461.50, 260,060.67 and 110,928.93

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Solution

The fourth proportional to 188,461.50, 260,060.67 and 110,928.93 is: 153,072.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,461.50 : 260,060.67 = 110,928.93 : x
  2. Step 2: Convert to fraction form
    188,461.50/260,060.67 = 110,928.93/x
  3. Step 3: Cross multiply
    188,461.50x = 260,060.67 × 110,928.93
  4. Step 4: Simplify right side
    188,461.50x = 28,848,251,858.18
  5. Step 5: Solve for x
    x = 28,848,251,858.18/188,461.50
  6. Step 6: Final answer
    x = 153,072.39

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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.