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Finding the Fourth Proportional to 188,464.46, 260,073.81 and 107,899.47

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Solution

The fourth proportional to 188,464.46, 260,073.81 and 107,899.47 is: 148,897.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,464.46 : 260,073.81 = 107,899.47 : x
  2. Step 2: Convert to fraction form
    188,464.46/260,073.81 = 107,899.47/x
  3. Step 3: Cross multiply
    188,464.46x = 260,073.81 × 107,899.47
  4. Step 4: Simplify right side
    188,464.46x = 28,061,826,259.88
  5. Step 5: Solve for x
    x = 28,061,826,259.88/188,464.46
  6. Step 6: Final answer
    x = 148,897.18

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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.