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Finding the Fourth Proportional to 188,433.45, 260,035.25 and 103,548.69

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Solution

The fourth proportional to 188,433.45, 260,035.25 and 103,548.69 is: 142,895.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,433.45 : 260,035.25 = 103,548.69 : x
  2. Step 2: Convert to fraction form
    188,433.45/260,035.25 = 103,548.69/x
  3. Step 3: Cross multiply
    188,433.45x = 260,035.25 × 103,548.69
  4. Step 4: Simplify right side
    188,433.45x = 26,926,308,973.58
  5. Step 5: Solve for x
    x = 26,926,308,973.58/188,433.45
  6. Step 6: Final answer
    x = 142,895.59

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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.