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Finding the Fourth Proportional to 188,995.89, 260,813.88 and 104,113.02

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Solution

The fourth proportional to 188,995.89, 260,813.88 and 104,113.02 is: 143,675.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,995.89 : 260,813.88 = 104,113.02 : x
  2. Step 2: Convert to fraction form
    188,995.89/260,813.88 = 104,113.02/x
  3. Step 3: Cross multiply
    188,995.89x = 260,813.88 × 104,113.02
  4. Step 4: Simplify right side
    188,995.89x = 27,154,120,704.72
  5. Step 5: Solve for x
    x = 27,154,120,704.72/188,995.89
  6. Step 6: Final answer
    x = 143,675.72

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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.